Patent Publication Number: US-10760865-B2

Title: Magazine loader

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. patent application Ser. No. 16/270,951 filed on Feb. 8, 2019, which is a continuation of U.S. patent application Ser. No. 16/036,321 filed on Jul. 16, 2018, which is a continuation-in-part of U.S. patent application Ser. No. 29/575,016, filed Aug. 22, 2016, the disclosures of which are incorporated by reference herein. 
    
    
     BACKGROUND OF THE DISCLOSURE 
     In order to maintain their proficiency with various types of firearms, military personnel, law enforcement officers and hunters frequently engage in target practice. In the sport of hunting, marksmanship is practiced so that a shot can be carefully placed to ensure a quick, clean and humane kill. For military personnel, good marksmanship may make the difference between victory and defeat in battlefield situations. Target practice is often performed at a shooting range with 300 or more cartridges being fired at each practice session. The expense involved in firing 300 rounds can be mitigated by using a firearm that fires 22 caliber long rifle rimfire ammunition. The design of this ammunition allows it to be manufactured at relatively low cost and millions of 22 caliber rifles have been manufactured to use this ammunition. A number of popular 22 caliber rifles utilize a tubular magazine extending below the rifle barrel. A magazine loader suitable for use with tubular magazines for 22 caliber rifles would be welcomed by the marketplace. 
     SUMMARY 
     A magazine loader for loading a batch of rimmed cartridges into a tubular rifle magazine is disclosed. In embodiments, the magazine loader comprises an elongate body comprising a hopper portion and a tubular magazine receiving portion with a circular aperture for receiving the tubular rifle magazine. In embodiments, the body defines a feed passageway extending between the hopper portion and the circular aperture of the tubular magazine receiving portion. The body may include, extending along the feed passageway, a first cartridge orienting portion, a second cartridge orienting portion, a third cartridge orienting portion, and a fourth cartridge orienting portion. The body may define, extending along the feed passageway, a first cartridge orienting passageway defined by the first cartridge orienting portion, a second cartridge orienting passageway defined by the second cartridge orienting portion, a third cartridge orienting passageway defined by the third cartridge orienting portion, and a fourth cartridge orienting passageway defined by the fourth cartridge orienting portion. 
     In embodiments, the magazine loader may comprise a closeable hopper cover at the top of the hopper portion, an adjustable cartridge quantity selector at a bottom of the hopper portion, and a movable gate positioned in the body between the second cartridge orienting portion and the third cartridge orienting portion. In embodiments, the magazine loader is manually holdable, tippable and shakable, and has a magazine loading position with the magazine loader being positioned horizontal or tipped slightly at an acute angle from horizontal, a channel loading and cartridge orienting mode where the magazine loader is shaken with the magazine loader at an inclined angle, and a magazine loading mode where the loader is mostly upright or at an acute angle from vertical and a portion of the tubular magazine is inserted in the tubular magazine receiving portion. 
     In embodiments, the hopper portion defines a hopper cavity sized to receive an unordered batch of cartridges. In embodiments, the hopper cavity opens into a three-sided channel of the feed passageway defined by two channel wall portions and a channel floor. In embodiments, the body has a pair of opposing shoulders extending along an upward portion of the three-sided channel for keeping rimmed ends of the cartridges upward in the three-sided channel. At the three-sided channel, the body may define the first cartridge orienting portion. In embodiments, the three-sided channel has a first height, wherein when a plurality of unordered cartridges enter the three-sided channel the cartridges are guided toward a tip first orientation and aligned side-by-side in a side-by-side ordered upright first row in the three-sided channel. In embodiments, the number of cartridges disposed in the three-sided channel can be selected using the adjustable cartridge quantity selector. 
     In embodiments, the three-sided channel extends into a second cartridge orienting passageway at the second cartridge orienting portion of the body where two opposing passageway wall portions, a floor portion, and a ceiling portion. In embodiments, the second cartridge orienting passageway has a second height that is less than the first height of the three-sided channel. In embodiment, the pair of opposing shoulders extend into the second cartridge orienting passageway, whereby the plurality of cartridges in the side-by-side ordered upright first row enter the second cartridge orienting passageway, each cartridge tipping forward to a rimmed ends forward and inclined side-by-side row. 
     In embodiments, the second cartridge orienting passageway extends into the third cartridge orienting passageway defined by the third cartridge orienting portion of the body. In embodiments, the third cartridge orienting portion of the body defines a third cartridge orienting passageway having a converging ceiling and floor. In embodiments, the third cartridge orienting portion of the body defines a third cartridge orienting passageway that converges to a third passageway. In embodiments, the third passageway is less than the second height. In embodiments, the third cartridge orienting portion of the body defines a third cartridge orienting passageway adapted and dimensioned so that the plurality of cartridges in the rimmed ends forward and inclined side-by-side row are, by force of gravity, rotated to form a rimmed end to tip end row. In embodiments, the third cartridge orienting passageway extends to a fourth cartridge orienting passageway defined by the fourth cartridge orienting portion of the body. In embodiments, the fourth cartridge orienting portion of the body defines a fourth cartridge orienting passageway adapted and dimensioned so that gravity feeds, orients, and/or directs a plurality of cartridges into alignment with the tubular rifle magazine for loading cartridges into the tubular rifle magazine. 
     In embodiments, the magazine loader comprises a spring having a first end seated against the moveable gate member and a second end seated against the body. The spring may apply a spring bias force to the moveable gate member. The spring bias force may bias the moveable gate toward a closed position. In embodiments, the moveable gate member comprises a T-shaped part. In embodiments, the T-shaped part has a downward extending leg and two finger engaging tabs. In embodiments, a first finger engaging tab extends away from the downward extending leg in a first direction, the second finger engaging tab extends away from the downward extending leg in a second direction, and the second direction being opposite the first direction. In embodiments, the body of the magazine loader comprises a first clamshell portion and a second clamshell portion. In embodiments, the first finger engaging tab of the moveable gate member extends through the first clamshell portion and the second finger engaging tab of the moveable gate member extends through the second clamshell portion. 
     In embodiments, the magazine loader comprises an adjustable cartridge quantity selector that is slidingly supported by the body and positioned at the bottom of the hopper cavity. In embodiments, the adjustable cartridge quantity selector is positioned to selectively or continuously cover a covered portion of the upper opening of the three-sided channel. The length of the covered portion may be varied as the adjustable cartridge quantity selector slides relative to the body. In embodiments, the hopper cavity defined by the hopper portion is sized to receive an unordered batch of cartridges and the hopper cavity opens into a three-sided channel located at the bottom thereof. In embodiments the bottom the hopper portion is funnel-like so that upon shaking of the hopper portion, a plurality of unordered cartridges enter the three-sided channel, the cartridges being guided toward a tip first orientation and aligned side-by-side in a first row in the three-sided channel. In embodiments, a first group of the cartridges aligned side-by-side in the first row in the three-sided channel are disposed under the adjustable cartridge quantity selector and a second group of the cartridges aligned side-by-side in the first row in the three-sided channel are not disposed under the adjustable cartridge quantity selector. The magazine loader may be tipped toward a vertical orientation, so that the cartridges in the second group not disposed under the adjustable cartridge quantity selector fall out of the three-sided channel and into the hopper cavity. The number of cartridges remaining in the three-sided channel may be determined by the position of the adjustable cartridge quantity selector when the magazine loader is tipped toward the vertical orientation. In embodiments, the adjustable cartridge quantity selector comprises a pointer and the body includes quantity indicating indicia. In embodiments, the quantity indicating indicia are positioned such that the pointer of the adjustable cartridge quantity selector points to one of the quantity indicating indicia corresponding to the number of cartridges remaining in the three-sided channel after the magazine loader is tipped toward the vertical orientation. Once a selected quantity of cartridges have been placed in the three-sided channel, the selected quantity of cartridges can be loaded into a tubular rifle magazine. 
     In embodiments, a method for loading a batch of rimmed cartridges into a tubular rifle magazine may comprise providing a magazine loader including an adjustable cartridge quantity selector that is slidingly supported by a body and positioned at the bottom of a hopper cavity defined by the body. In embodiments, the adjustable cartridge quantity selector is positioned to selectively or continuously cover a covered portion of an upper opening of a three-sided channel that opens into the hopper cavity. The length of the covered portion may be varied as the adjustable cartridge quantity selector slides relative to the body. In embodiments the bottom the hopper portion is funnel-like so that upon shaking of the hopper portion, a plurality of unordered cartridges enter the three-sided channel, the cartridges being guided toward a tip first orientation and aligned side-by-side in a first row in the three-sided channel. In embodiments, a first group of the cartridges aligned side-by-side in the first row in the three-sided channel are disposed under the adjustable cartridge quantity selector and a second group of the cartridges aligned side-by-side in the first row in the three-sided channel are not disposed under the adjustable cartridge quantity selector. The magazine loader may be tipped away from a vertical orientation, so that the cartridges in the second group not disposed under the adjustable cartridge quantity selector fall out of the three-sided channel and into the hopper cavity. The number of cartridges remaining in the three-sided channel may be determined by the position of the adjustable cartridge quantity selector when the magazine loader is tipped away from the vertical orientation. In embodiments, the adjustable cartridge quantity selector comprises a pointer and the body includes quantity indicating indicia. In embodiments, the quantity indicating indicia are positioned such that the pointer of the adjustable cartridge quantity selector points to one of the quantity indicating indicia corresponding to the number of cartridges remaining in the three-sided channel after the magazine loader is tipped toward the vertical orientation. Once a selected quantity of cartridges have been placed in the three-sided channel, the selected quantity of cartridges can be loaded into a tubular rifle magazine. 
     A feature and advantage of embodiments is a magazine loader including an adjustable cartridge quantity selector. The number of cartridges to be loaded in a tubular magazine can be selected using the adjustable cartridge quantity selector. 
     A feature and advantage of embodiments is a magazine loader including a moveable gate with left and right finger engaging tabs. The gate can be selectively opened to begin loading cartridges into a tubular magazine. 
     A feature and advantage of embodiments is a magazine loader that mates with tubular rifle magazines. A feature and advantage of embodiments involves providing a magazine loader that is capable of receiving tubular magazines from firearms of various makes and models without requiring a user to make adjustments to the magazine loader. A cavity of the magazine loader has sufficient clearance around each tubular magazine to provide a multi-magazine fit. For example, a user can load magazines from multiple firearms of different makes and/or models during a visit to a firing range. 
     A feature and advantage of embodiments is a magazine loader including a gravity operated mechanism that feeds and orients cartridges from unordered batch into a row of cartridges arranged in end-to-end alignment. 
     A magazine loader for loading rimmed cartridges into a tubular rifle magazine of a rifle is provided. In embodiments, the magazine loader comprises a body comprising a hopper portion, a magazine receiving portion, a first cartridge orienting portion, a second cartridge orienting portion, a third cartridge orienting portion, and a fourth cartridge orienting portion. In embodiments, the magazine receiving portion defines a cylindrically shaped magazine receiving bore extending along a magazine insertion and withdrawal axis. In embodiments, the magazine insertion and withdrawal axis extends in a rearward direction and a forward direction relative to the body. The body may be rotated between a horizontal position and a vertical position, the insertion and withdrawal axis extending horizontally and the hopper portion being above the first cartridge orienting portion while the body is in the horizontal position and the hopper portion being above the magazine receiving portion and the insertion and withdrawal axis extending somewhat vertically while the body is in the vertical position. 
     In embodiments, the hopper portion defines a hopper cavity sized to receive an unordered batch of cartridges. In embodiments, the hopper cavity opens into a first channel defined by the first cartridge orienting portion. In embodiments, the hopper portion defines a hopper cavity sized to receive an unordered batch of cartridges. In embodiments, the hopper portion has a V-shape so that upon agitation of the hopper portion, a plurality of the unordered cartridges enter the first cartridge orienting portion in a tip first orientation and become sequentially aligned in a row along the first cartridge orienting portion. 
     In embodiments, the first cartridge orienting portion comprises two opposing channel wall portions, the first channel wall portions defining a first channel that opens into the hopper cavity. In embodiments, the first channel has a width selected such that a projectile portion of each cartridge passes into the first channel, but a rim portion of each cartridge does not pass into the first channel. When this is the case, each cartridge may hang vertically by its rim when the body is assuming the horizontal orientation. 
     In embodiments, the second cartridge orienting portion comprises two opposing channel wall portions, the channel wall portions defining a second channel that opens into the first channel defined by the first cartridge orienting portion. In embodiments, each cartridge falls, by force of gravity, into the second channel from the first channel when the body is rotated to the vertical orientation. In embodiments, the second channel has a depth selected such that the projectile portion of each cartridge contacts a second cartridge orienting surface when the body is rotated to the vertical orientation. In embodiments, each cartridge falls, by force of gravity, into the second channel from the first channel, and each cartridge rotates to a skewed orientation as the projectile portion of each cartridge contacts the second cartridge orienting surface. 
     In embodiments, the third cartridge orienting portion is dimensioned and configured such that that, as each cartridge falls out of the second channel, by force of gravity, the rim of each cartridge contacts a rim engaging and orienting surface of the third cartridge orienting portion. In embodiments, the fourth cartridge orienting portion includes a fourth orienting surface, the fourth orienting surface being oriented such that, when a cartridge contacts the fourth orienting surface, the cartridge rotates to an orientation in which a longitudinal axis of the cartridge is parallel to the insertion and withdrawal axis whereby each cartridge falls, by force of gravity, in a rim first orientation downward through the magazine receiving bore. 
     The above summary is not intended to describe each illustrated embodiment or every implementation of the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
       The drawings included in the present application are incorporated into, and form part of, the specification. They illustrate embodiments of the present disclosure and, along with the description, serve to explain the principles of the disclosure. The drawings are only illustrative of certain embodiments and do not limit the disclosure. 
         FIG. 1  is a perspective view of a magazine loader in accordance with the detailed description. 
         FIG. 2  is a stylized perspective view of a magazine loader in accordance with the detailed description. 
         FIG. 3A  is an elevation view of a rifle and a magazine loader in accordance with the detailed description. 
         FIG. 3B  is a cross-sectional view of a magazine loader in accordance with the detailed description. 
         FIG. 4A  is a cross-sectional view of a magazine loader in accordance with the detailed description. 
         FIG. 4B  is a cross-sectional view of a magazine loader in accordance with the detailed description. 
         FIG. 5  is an exploded view of a magazine loader in accordance with the detailed description. 
         FIG. 6  is a perspective view showing a portion of a magazine loader in accordance with the detailed description. 
         FIG. 7  is a perspective view showing a portion of a magazine loader in accordance with the detailed description. 
         FIG. 8  is a perspective view of a magazine loader in accordance with the detailed description. 
         FIG. 9  is a front view of the magazine loader shown in  FIG. 8  while the magazine loader is assuming a vertical orientation. 
         FIG. 10  is a rear view of the magazine loader shown in  FIG. 8  while the magazine loader is assuming a vertical orientation. 
         FIG. 11  is a left side view of the magazine loader shown in  FIG. 8  while the magazine loader is assuming a vertical orientation. 
         FIG. 12  is a right side view of the magazine loader shown in  FIG. 8  while the magazine loader is assuming a vertical orientation. 
         FIG. 13  is a bottom view of the magazine loader shown in  FIG. 8  while the magazine loader is assuming a vertical orientation. 
         FIG. 14  is a top view of the magazine loader shown in  FIG. 8  while the magazine loader is assuming a vertical orientation. 
         FIG. 15  is a perspective view of a magazine loader in accordance with the detailed description. The closeable cover of the magazine loader has been removed for purposes of illustration in the embodiment of  FIG. 15 . 
     
    
    
     While embodiments of the disclosure are amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the disclosure to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the disclosure. 
     DETAILED DESCRIPTION 
     Referring to  FIGS. 1-3B , a magazine loader  100  for loading a batch of rimmed cartridges  102  into a tubular rifle magazine  104  is disclosed. In embodiments, the magazine loader  100  comprises an elongate body  106  comprising a hopper portion  108  and a tubular magazine receiving portion  110  with a circular aperture  112  for receiving the tubular rifle magazine  104 . In embodiments, the body  106  defines a feed passageway  114  extending between the hopper portion  108  and the circular aperture  112  of the tubular magazine receiving portion  110 . The body  106  may include, extending along the feed passageway  114 , a first cartridge orienting portion  116 , a second cartridge orienting portion  118 , a third cartridge orienting portion  120 , and a fourth cartridge orienting portion  122 . The body  106  may define, extending along the feed passageway  114 , a first cartridge orienting passageway  124  defined by the first cartridge orienting portion  116 , a second cartridge orienting passageway  126  defined by the second cartridge orienting portion  118 , a third cartridge orienting passageway  128  defined by the third cartridge orienting portion  120 , and a fourth cartridge orienting passageway  130  defined by the fourth cartridge orienting portion  122 . 
     Referring to  FIGS. 1-3B and 9 , the magazine loader  100  may comprise a closeable hopper cover  132  at the top of the hopper portion  108 , an adjustable cartridge quantity selector  134  at a bottom of the hopper portion  108 , and a movable gate  136  positioned in the body  106  between the second cartridge orienting portion  118  and the third cartridge orienting portion  120 . In embodiments, the magazine loader  100  is manually holdable, tippable and shakable, and has a magazine loading position with the magazine loader  100  being positioned horizontal or tipped slightly at an acute angle from horizontal, a channel loading and cartridge orienting mode where the magazine loader is shaken with the magazine loader at an inclined angle, and a magazine loading mode where the loader is mostly upright or at an acute angle from vertical and a portion of the tubular magazine is inserted in the tubular magazine receiving portion. 
     Referring to  FIGS. 2 and 3A , in embodiments, the hopper portion  108  defines a hopper cavity  138  sized to receive an unordered batch of cartridges  102 . In embodiments, the hopper cavity  138  opens into a three-sided channel  140  of the feed passageway  114  defined by two channel wall portions  142  and a channel floor  144 . In embodiments, the body  106  has a pair of opposing shoulders  146  extending along an upward portion of the three-sided channel  140  for keeping rimmed ends of the cartridges  102  upward in the three-sided channel  140 . At the three-sided channel  140 , the body  106  may define the first cartridge orienting portion  116 . In embodiments, the three-sided channel  140  has a first height  148 , wherein when a plurality of unordered cartridges  102  enter the three-sided channel  140  the cartridges  102  are guided toward a tip first orientation and aligned side-by-side in a side-by-side ordered upright first row  158  in the three-sided channel  140 . In embodiments, the number of cartridges  102  disposed in the three-sided channel  140  can be selected using the adjustable cartridge quantity selector  134 . 
     Referring to  FIGS. 3 and 4 , in embodiments, the three-sided channel  140  extends into a second cartridge orienting passageway  126  at the second cartridge orienting portion  118  of the body  106  where two opposing passageway wall portions  150 , a floor portion  152 , and a ceiling portion  154 . In embodiments, the second cartridge orienting passageway  126  has a second height  156  that is less than the first height  148  of the three-sided channel  140 . In embodiment, the pair of opposing shoulders  146  extend into the second cartridge orienting passageway  126 , whereby the plurality of cartridges in the side-by-side ordered upright first row  158  enter the second cartridge orienting passageway  126 , each cartridge tipping forward to a rimmed ends forward and inclined side-by-side row  160 . 
     Referring to  FIGS. 1-4 , in embodiments, the second cartridge orienting passageway  126  extends into the third cartridge orienting passageway  128  defined by the third cartridge orienting portion  120  of the body  106 . In embodiments, the third cartridge orienting portion  120  of the body  106  defines a third cartridge orienting passageway  128  having a converging ceiling and floor. In embodiments, the third cartridge orienting portion  120  of the body  106  defines a third cartridge orienting passageway  128  that converges to a third passageway  162 . In embodiments, the third passageway  162  is less than the second height  156 . In embodiments, the third cartridge orienting portion  120  of the body  106  defines a third cartridge orienting passageway  128  adapted and dimensioned so that the plurality of cartridges in the rimmed ends forward and inclined side-by-side row  160  are, by force of gravity, rotated to form a rimmed end to tip end row  164 . In embodiments, the third cartridge orienting passageway  128  extends to a fourth cartridge orienting passageway  130  defined by the fourth cartridge orienting portion  122  of the body  106 . In embodiments, the fourth cartridge orienting portion  122  of the body  106  defines a fourth cartridge orienting passageway  130  adapted and dimensioned so that gravity feeds, orients, and/or directs a plurality of cartridges into alignment with the tubular rifle magazine  104  for loading cartridges  102  into the tubular rifle magazine  104 . 
     Referring to  FIGS. 2, 5 and 6 , in embodiments, a magazine loader  100  comprises a spring  168  having a first end seated against the moveable gate member  136  and a second end seated against the body  106 . The spring  168  may apply a spring bias force to the moveable gate member  136 . The spring bias force may bias the moveable gate toward a closed position. In embodiments, the moveable gate member  136  comprises a T-shaped part  172 . In embodiments, the T-shaped part  172  has a downward extending leg  174  and two finger engaging tabs  176 . In embodiments, a first finger engaging tab  176  extends away from the downward extending leg  174  in a first direction, the second finger engaging tab  176  extends away from the downward extending leg  174  in a second direction, and the second direction being opposite the first direction. In embodiments, the body  106  of the magazine loader  100  comprises a first clamshell portion  178  and a second clamshell portion  178 . In embodiments, the first finger engaging tab  176  of the moveable gate member  136  extends through the first clamshell portion  178  and the second finger engaging tab  176  of the moveable gate member  136  extends through the second clamshell portion  178 . 
     Referring to  FIGS. 2, 3A, 3B, 6 and 7 , in embodiments, the magazine loader  100  comprises an adjustable cartridge quantity selector  134  that is slidingly supported by the body  106  and positioned at the bottom of the hopper cavity  138 . In embodiments, the adjustable cartridge quantity selector  134  is positioned to selectively or continuously cover a covered portion  180  of the upper opening of the three-sided channel  140 . The length of the covered portion  180  may be varied as the adjustable cartridge quantity selector  134  slides relative to the body  106 . In embodiments, the hopper cavity  138  defined by the hopper portion  108  is sized to receive an unordered batch of cartridges  102  and the hopper cavity  138  opens into a three-sided channel  140  located at the bottom thereof. In embodiments the bottom the hopper portion  108  is funnel-like so that upon shaking of the hopper portion  108 , a plurality of unordered cartridges  102  enter the three-sided channel  140 , the cartridges  102  being guided toward a tip first orientation and aligned side-by-side in a first row in the three-sided channel  140 . In embodiments, a first group  182  of the cartridges  102  aligned side-by-side in the first row in the three-sided channel  140  are disposed under the adjustable cartridge quantity selector  134  and a second group  184  of the cartridges  102  aligned side-by-side in the first row in the three-sided channel  140  are not disposed under the adjustable cartridge quantity selector  134 . The magazine loader may be tipped toward a vertical orientation, so that the cartridges  102  in the second group  184  not disposed under the adjustable cartridge quantity selector  134  fall out of the three-sided channel  140  and into the hopper cavity  138 . The number of cartridges  102  remaining in the three-sided channel  140  may be determined by the position of the adjustable cartridge quantity selector  134  when the magazine loader  100  is tipped toward the vertical orientation. In embodiments, the adjustable cartridge quantity selector  134  comprises a pointer  166  and the body  106  includes quantity indicating indicia  170 . In embodiments, the quantity indicating indicia  170  are positioned such that the pointer  166  of the adjustable cartridge quantity selector  134  points to one of the quantity indicating indicia  170  corresponding to the number of cartridges  102  remaining in the three-sided channel  140  after the magazine loader  100  is tipped toward the vertical orientation. Once a selected quantity of cartridges  102  have been placed in the three-sided channel  140 , the selected quantity of cartridges  102  can be loaded into a tubular rifle magazine  104 . 
     Referring to  FIGS. 2, 5 and 6 , in embodiments, a method for loading a batch of rimmed cartridges  102  into a tubular rifle magazine  104  may comprise providing a magazine loader  100  including an adjustable cartridge quantity selector  134  that is slidingly supported by a body  106  and positioned at the bottom of a hopper cavity  138  defined by the body. In embodiments, the adjustable cartridge quantity selector  134  is positioned to selectively or continuously cover a covered portion  180  of an upper opening of a three-sided channel  140  that opens into the hopper cavity  138 . The length of the covered portion  180  may be varied as the adjustable cartridge quantity selector  134  slides relative to the body  106 . In embodiments the bottom the hopper portion  108  is funnel-like so that upon shaking of the hopper portion  108 , a plurality of unordered cartridges  102  enter the three-sided channel  140 , the cartridges  102  being guided toward a tip first orientation and aligned side-by-side in a first row in the three-sided channel  140 . In embodiments, a first group of the cartridges  102  aligned side-by-side in the first row in the three-sided channel  140  are disposed under the adjustable cartridge quantity selector  134  and a second group of the cartridges  102  aligned side-by-side in the first row in the three-sided channel  140  are not disposed under the adjustable cartridge quantity selector  134 . The magazine loader may be tipped away from a vertical orientation, so that the cartridges  102  in the second group not disposed under the adjustable cartridge quantity selector  134  fall out of the three-sided channel  140  and into the hopper cavity  138 . The number of cartridges  102  remaining in the three-sided channel  140  may be determined by the position of the adjustable cartridge quantity selector  134  when the magazine loader  100  is tipped away from the vertical orientation. In embodiments, the adjustable cartridge quantity selector  134  comprises a pointer  166  and the body  106  includes quantity indicating indicia  170 . In embodiments, the quantity indicating indicia  170  are positioned such that the pointer  166  of the adjustable cartridge quantity selector  134  points to one of the quantity indicating indicia  170  corresponding to the number of cartridges  102  remaining in the three-sided channel  140  after the magazine loader  100  is tipped toward the vertical orientation. Once a selected quantity of cartridges  102  have been placed in the three-sided channel  140 , the selected quantity of cartridges  102  can be loaded into a tubular rifle magazine  104 . 
     Referring to  FIG. 3B , a number of axes are illustrated using dashed lines. The axes shown in  FIG. 3B  include a hopper axis  190  extending along the hopper portion  108  of the body  106  and the hopper cavity  138  defined by the hopper portion. The axes shown in  FIG. 3B  also include an axis  192  extending along the first cartridge orienting passageway  124  defined by the first cartridge orienting portion  116 . An axis  194  extending along the second cartridge orienting passageway  126  defined by the second cartridge orienting portion  118  is also shown in  FIG. 3B . The axes shown in  FIG. 3B  also include an axis  196  extending along the third cartridge orienting passageway  128  defined by the third cartridge orienting portion  120 . An axis  198  extending along the fourth cartridge orienting passageway  130  defined by the fourth cartridge orienting portion  122  is also shown in  FIG. 3B . 
     Referring to  FIGS. 1 and 2 , a forward direction Y and a rearward direction −Y are illustrated using arrows labeled “Y” and “−Y,” respectively. A starboard direction X and a port direction −X are illustrated using arrows labeled “X” and “−X,” respectively. An outboard direction Z and an inboard direction −Z are illustrated using arrows labeled “Z” and “−Z,” respectively. The directions illustrated using these arrows are applicable to the apparatus shown and discussed throughout this application. The port direction may also be referred to as the portward direction. In one or more embodiments, the outboard direction is generally opposite the inboard direction. In one or more embodiments, the outboard direction and the inboard direction are both generally orthogonal to an XY plane defined by the forward direction and the starboard direction. In one or more embodiments, the forward direction is generally opposite the rearward direction. In one or more embodiments, the forward direction and the rearward direction are both generally orthogonal to a ZX plane defined by the outboard direction and the starboard direction. In one or more embodiments, the starboard direction is generally opposite the port direction. In one or more embodiments, starboard direction and the port direction are both generally orthogonal to a ZY plane defined by the outboard direction and the forward direction. Various direction-indicating terms are used herein as a convenient way to discuss the objects shown in the figures. It will be appreciated that many direction indicating terms are related to the instant orientation of the object being described. It will also be appreciated that the objects described herein may assume various orientations without deviating from the spirit and scope of this detailed description. Accordingly, direction-indicating terms such as “outboardly,” “inboardly,” “forwardly,” “backwardly,” “portwardly,” and “starboardly,” should not be interpreted to limit the scope of the invention recited in the attached claims. 
     The following United States patents are hereby incorporated by reference herein: U.S. Pat. Nos. 3,628,273, 4,392,321, 4,736,667, and 5,301,449. The documents identified by the following United States publication numbers are hereby incorporated by reference herein: US2003/0046854 and US2014/0033592. 
     The above references in all sections of this application are herein incorporated by references in their entirety for all purposes. Components illustrated in such patents may be utilized with embodiments herein. Incorporation by reference is discussed, for example, in MPEP section 2163.07(B). 
     All of the features disclosed in this specification (including the references incorporated by reference, including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive. 
     Each feature disclosed in this specification (including references incorporated by reference, any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features. 
     The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any incorporated by reference references, any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed. The above references in all sections of this application are herein incorporated by references in their entirety for all purposes. 
     Although specific examples have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that any arrangement calculated to achieve the same purpose could be substituted for the specific examples shown. This application is intended to cover adaptations or variations of the present subject matter. Therefore, it is intended that the invention be defined by the attached claims and their legal equivalents, as well as the following illustrative aspects. The above described aspects embodiments of the invention are merely descriptive of its principles and are not to be considered limiting. Further modifications of the invention herein disclosed will occur to those skilled in the respective arts and all such modifications are deemed to be within the scope of the invention.