Quote:
Originally Posted by Iraqgunz
I have personally seen 5 documented cases of this happening. In every single it was due to the chamber being non 5.56 and the primer blew back into the weapon during the cycle of operation.
The weapons that I know that were involved were Bushmaster carbines and 1 DPMS.
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Iraqgunz:
You have only seen five cases of blown primers in AR's? He, he, he. I have seen guys shoot rapid fire strings and blow several primers in one string. And it wasn't because they were shooting 5.56 through .223 chambers and jammed the bullets into the rifling, thus causing a pressure spike.
It was because they thought they were getting over by getting another twenty fps out of a already too hot load, fired on a more than average hot day, after their ammo sat in the sun for a few hours and cooked.
I don't take blown primers as easily as some guys. It means the guy either made a mistake in his handloading or took an unnecessary risk to win a match.
That said, I can't recall one experience with Lake City 5.56 blowing a primer in an issued service rifle or carbine. Crimped primers do work.
Gene