Patent ID: 11913748
Assignee: SIG SAUER, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A magazine for rimmed cartridges, the magazine comprising:
a magazine tube extending linearly along a central axis from a bottom end to a top end, the magazine tube having a front tube wall, a rear tube wall, a left tube sidewall, and a right tube sidewall;
a first left rib and a first right rib extending along an inside of the magazine tube in an opposed relationship, wherein the first left rib extends inward from a forward portion of the left tube sidewall and the first right rib extends inward from a forward portion of the right tube sidewall, and wherein the first left rib and the first right rib are laterally spaced by a first spacing; and
a second left rib and a second right rib extending along an inside of the magazine tube in an opposed relationship, wherein the second left rib extends inward from a rear portion of the left tube sidewall and the second right rib extends inward from a rear portion of the right tube sidewall, wherein the second left rib and the second right rib are laterally spaced by a second spacing that is greater than the first spacing;
wherein when the magazine is filled to capacity with rimmed cartridges, the magazine includes a stack of rimmed cartridges arranged in two offset columns with the rimmed cartridges in the two offset columns being directed inward towards a median plane, and wherein an axis through each of the rimmed cartridges extends upward at a pitch angle from 15° to 25° with respect to a horizontal when the front tube wall is oriented vertically.