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

Claim 18:
19. The magazine of claim 15, wherein the magazine tube has a front tube wall, a rear tube wall, a left tube sidewall, and a right tube sidewall and the magazine further comprising:
a first left rib and a first right rib extending along the magazine axis on 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 the magazine axis on 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.