Last round of .45 ball ammo failed to feed. Not hung up on breech face, not touching extractor yet, not touching feed ramp yet. Hmmmmm......what could it be?
Checkmate puts a dimple on their follower. This one happened to be "D" shaped and had a square edge to it. Sure enough, as the case slides forward on the follower the front edge of the case rim hangs up on the dimple. This is one of two Checkmate mags and the other seems to be fine.
Problem mag on left, other Checkmate mag in center and Wilson mag on right. Wilson mag also dimpled but far less pronounced.
Massaged the area. Was going to blue it, but the follower is stainless so I just cleaned the whole top surface instead and did the other mag too for good measure.
Checkmate puts a dimple on their follower. This one happened to be "D" shaped and had a square edge to it. Sure enough, as the case slides forward on the follower the front edge of the case rim hangs up on the dimple. This is one of two Checkmate mags and the other seems to be fine.
Problem mag on left, other Checkmate mag in center and Wilson mag on right. Wilson mag also dimpled but far less pronounced.
Massaged the area. Was going to blue it, but the follower is stainless so I just cleaned the whole top surface instead and did the other mag too for good measure.