Dave's points are good but seems to be more a cartridge dimension or gun issue than powder as slide is not always going into battery. And if it happens with factory loads, then it seems more gun related. If chamber is clean, is it possible chamber is on the minimum spec length? I have a Razorback that does that and I have to reload on the shorter OAL than my other 8 10mm handguns (still hangs up on unfired round once in a while). Extractor needs tuning? Rounds hanging up on slide release when feeding from mag (should not make slide hard to pull back tho)? Different mag might help feeding (again fact slide is hard to pull back is a key symptom that does not fit mag issue)? Once round is fed and in battery and slide issue is a major point. Not sure I have helped any.
I have used dozens of different powders including AA7 with no significant issues. Actually most of Hodgdon's powders are made by ADI in Australia.
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COTEP CBOB0297
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