I like to shoot CCI 29gr CB .22LR, but my Mark II has persistent problems feeding them: The tip consistently yaws to one side before the bullet can get into the chamber. The magazine might have something to do with the problem: I can sometimes jimmy the first few in, but last ones will absolutely not go in.

The CB rounds are only .1" shorter than standard 40gr .22LR so this seems like a real design flaw. The factory basically said, "Yeah, that's not going to work well." Anyone have ideas on making it work?