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I have been reading up a little on bolt plus buffer weight used in 9mm ARs. It seems around 20 ounces give or take is the norm?
One question I have is how much buffer plus bolt weight would be required to keep the 9mm case from extracting at all, 30oz, 40oz, 80oz?
Secondly if a barrier was placed behind the bolt to prevent it from opening how much force (in pounds) would that barrier have to withstand to hold the bolt closed?
One question I have is how much buffer plus bolt weight would be required to keep the 9mm case from extracting at all, 30oz, 40oz, 80oz?
Secondly if a barrier was placed behind the bolt to prevent it from opening how much force (in pounds) would that barrier have to withstand to hold the bolt closed?