Chart

To demonstrate how the magazines and ammo influence controlled feed, each combination of cartridge and mag was photographed at four critical points in the controlled feed cycle:

1. Cartridge in magazine, breech face just making contact with base of round
2. Cartridge still in magazine, bullet just touching the frame ramp
3. Bullet nosing over the barrel ramp, rim beginning to engage extractor
4. Bullet entering chamber during cartridge nose-over

These stages are shown in order left to right for each type of magazine feed lip. The pictures' row labels of "wadcutter," "hybrid," and "usgi" refer to short parallel feed lips, tapered lips with an early release, and fully-tapered lips, respectively. Finally, everything's grouped by ammo type.

All photos may be clicked for a clearer view.

Ranger	wadcutter hybrid usgi
Gold Dot	wadcutter hybrid usgi
Golden Saber	wadcutter hybrid usgi
HST	wadcutter hybrid usgi
Winchester ball	wadcutter hybrid usgi
PMC ball	wadcutter hybrid usgi
lead semi-wadcutter	wadcutter hybrid usgi
full metal jacket semi-wadcutter	wadcutter hybrid usgi
full metal jacket flat point	wadcutter hybrid usgi