I am pretty sure I know the problem but I wanted to ask people far more intelligent than I am.
Today I took my SBR to get it sighted in before my LAV class. The range is an indoor range with more rules than common sense so I was not able to do much to diagnose issues on site.
3 or 4 times over the course of the day I had the bolt slide over the top of the round and trap it between the bolt and the feed ramps. I thought it may have been mags since I was using a couple USGI 20s, however my friend had no problems with the same mags and I did have the same problem with my single Lancer 20 rounder.
The gun is the following.
Daniel Defense 10.3 inch LW barrel, Upper and Bolt. Colt Lower with a H buffer.
Ammo was PMC Bronze 55 grain.
I am sure it is something pretty basic but I wanted to run it by the smart people.
Thanks.
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