Out of battery detonation


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bentongunclub
January 5, 2012, 09:26 AM
I had an out of battery detonation last month. I was firing 7.61 NATO reloads in my M1A. When it went off there was a distinctively lower toned bang, lots of blue smoke, stiff wind on my hand and face, and the bottom of the mag flew off. My determination is that I let an improperly seated primer through and the bolt face set it off. Here are a couple of photos. It is fairly easy to pick out the good brass from the destroyed brass.

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68wj
January 5, 2012, 09:30 AM
Sounds like you're okay though. Good!

LoonWulf
January 5, 2012, 01:00 PM
Glad you werent injured :D

that might not be the best way to form strait wall cases from a .308....just saying. Again, glad you werent hurt, hows the rifle?

bentongunclub
January 5, 2012, 05:23 PM
No obvious damage to the rifle. Kept shooting that day and it was still on. This saturday is an 'as-issued' match at our club and I will be trying out a new hooded rear sight.

jpwilly
January 5, 2012, 05:42 PM
Could have been a high primer or a case that wasn't resized just right and was sticking out a little. Either way good thing the brass held and didn't burst.

AK103K
January 5, 2012, 08:22 PM
With the M1's and M1As, I check all my sized and trimmed brass in a case gauge, and then mic the primers with a primer gauge. That should eliminate most of your ammo related worries with these rifles.

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