Quote Originally Posted by Former11B View Post
You didn't check the OAL during and after loading the first round?
I did. Of course I did. But I was thinking that maybe those bullets I bought were snagging and hanging up on the feed ramps or whatever. So I tested it seated just a smidgin deeper in an effort to isolate the problem.

I will try some factory ammo to see if for some reason my loads are occassionally under powered or not. That could be it as well. If I can run 100 rounds of factory ammo without a problem that will isolate the problem. If not then it might be the gas system being either under or over gassed... that said if that was the case I think it would be a more persistent problem. Not just 1 round out of a 30 round mag...

I really don't know the answer. I am scratching my head trying to isolate the problem.