03-15-2011, 12:20 PM
More like 40% of the time.
All ammo was AA brand.
The upper was a competition special with direct gas impinge bolt.
What was happening was the extractor was digging into the case rim and not allowing the case to release easy.
After the stoning the rounds would release properly.
I had to use a jewlers file on the top of the rim to remove the burs on the first rounds fired before I fixed the problem. They would hang up going in my shell holder.
All ammo was AA brand.
The upper was a competition special with direct gas impinge bolt.
What was happening was the extractor was digging into the case rim and not allowing the case to release easy.
After the stoning the rounds would release properly.
I had to use a jewlers file on the top of the rim to remove the burs on the first rounds fired before I fixed the problem. They would hang up going in my shell holder.