I know there's been lots of posts on ADCOM ammo, specifically 99 lot ammo and popped primers. The jury has said "over pressure". I had a thought.... What about the primer pocket in the brass?
I used my calipers and found:
1999 lot ADCOM: .177
Any other brass I had: .174
Primer outside diameter: .175
I have a buddy that has some and was discouraged with his carbine, he couldn't get this stuff to group. So I gave him some other ADCOM, 98 lot and it did much better, along with some Serb M195 stuff.
I used some of the 99 lot for CQB blasting and got a couple of popped primers.
Anyway, has anyone else had the 99 lot ADCOM and if you have had it and got some popped primers could you measure the size of the primer pocket?
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