Sabotloader, thanks for the pics, makes it easier to comprehend what's going on. Just got the vision sent out today, talked to sam. For the money, a very good shooter. I shoot bh out of both and haven't had any issues with that end as far as the bp's go. The issue is the one with the flat bp, the firing pin doesn't hit the primer every time, just barely a dimple. The coned bp has a fairly strong magnet that pulls the primer in, do get a little more blowback on that one, though the other bp's pretty tight and i have to take pliers to get some primers out. I do have an accura that all primers seem to fit in pretty loose yet i get very little blowback? go figure. Knights customer service seems above normal and they are nice as pie, hope they get back on track. To bad they don't all make a universal bp, so they'd be easy to replace.