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M1a magazine base blowing out

2381 Views 16 Replies 15 Participants Last post by  hardheaded
My m1a magazine base blows out .im using magrtek 175 gr. The first time it cracked the stock. The second time I was using Cmp loads.rifle is 2years old replacmet stock is70 years old it did not break
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Can't diagnose a problem described in a couple sentences.

Are you saying the cartridge detonated and blew out the mag and all the rounds? Out of Battery (OOB) detonation? Pieces of the cartridge case left in the chamber? ???

JWB
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u no...with a smrt fon... who crz abt gramr.

JWB
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