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M1a magazine base blowing out

2377 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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70 year old m1a/m14 stock?

What rifle are you shooting? Are you single loading? More info is needed. Sounds like an out of battery(oob) where the bolt is not fully closed.
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