Cartridge magazine

1. A cartridge magazine, comprising:

a rib mounted on a vertical wall of the cartridge magazine;

a ramp attached to a top of the rib having a ramp taper, wherein the rib has a height that increases between a bottom of the rib and a top of the rib along a length of the rib which is disposed along a longitudinal length of the vertical wall of the cartridge magazine, wherein the ramp taper tapers perpendicularly to the longitudinal length of the cartridge magazine, and wherein the ramp taper follows a taper of a shoulder of a cartridge case.

2. The cartridge magazine of claim 1 , further comprising a plurality of ribs disposed along the longitudinal length of the vertical wall of the cartridge magazine.

3. The cartridge magazine of claim 2 , further comprising a plurality of ramps attached to the plurality of ribs disposed along the longitudinal length of the vertical wall of the cartridge magazine.

4. The cartridge magazine of claim 1 , wherein a second vertical wall opposes the vertical wall and includes a spacer mounted on the second vertical wall.

5. The cartridge magazine of claim 1 , wherein a second vertical wall opposes the vertical wall and includes a flat surface.

6. The cartridge magazine of claim 1 , wherein the cartridge magazine is sized with the rib to organize cartridges in a staggered stack within the cartridge magazine.

7. The cartridge magazine of claim 6 , wherein the cartridge magazine positions each cartridge to have less than a 30 degree stagger angle.

8. The cartridge magazine of claim 7 , wherein the cartridge magazine positions each cartridge to have less that a 60 degree stagger angle.

9. The cartridge magazine of claim 6 , wherein the cartridge magazine is sized with the ramp to organize cartridges in a single stack within the cartridge magazine.

10. The cartridge magazine of claim 1 , wherein the cartridge magazine organizes cartridges into a single stack and a staggered stack.

11. The cartridge magazine of claim 1 , further comprising a spacer having a flat portion, wherein the flat portion provides a space for a cartridge of a particular caliber between the flat portion of the spacer and an opposing wall of the cartridge magazine.

12. A cartridge magazine, comprising:

an opening including spacer having a flat portion, wherein the flat portion provides a space for a cartridge of a particular caliber between the flat portion of the spacer and an opposing wall of the cartridge magazine; and

a rib having a height that increases between a bottom of the rib and a too of the rib along a length of the rib which is disposed along a longitudinal length of the cartridge magazine which includes a tapered ramp at an end of the rib, wherein the tapered ramp tapers perpendicularly to the longitudinal length of the cartridge magazine and wherein the tapered ramp taper follows a taper of a shoulder of the cartridge of a particular caliber.

13. The cartridge magazine of claim 12 , wherein the tapered ramp has a taper that has an angle that is within 10% of the taper of the shoulder of the cartridge of the particular caliber.

14. The cartridge magazine of claim 12 , wherein the ramp attached to the rib is disposed on a first vertical wall of the cartridge magazine that opposes a second vertical wall.

15. The cartridge magazine of claim 14 , wherein the rib extends from the ramp to a base of the cartridge.

16. The cartridge magazine of claim 12 , wherein the second vertical wall of the cartridge magazine includes a feed lip that retains cartridges within the cartridge magazine.

17. The cartridge magazine of claim 12 , wherein the opening further includes a feed notch.

18. The cartridge magazine of claim 12 , wherein the cartridge magazine organizes cartridges into a single stack and a staggered stack.

19. The cartridge magazine of claim 18 , wherein the cartridge magazine organizes a top two cartridges into a single stack.

20. The cartridge magazine of claim 19 wherein the cartridge magazine organizes cartridges below the top two cartridges into a staggered stack.