blindhog1964
Member
- Joined
- Mar 25, 2009
- Messages
- 58
I have an AR15 and an AR10 both new the AR10 is a DPMS LR260 the AR15 is a bushmaster. I finally got out to the range the last couple of weekends and decided to sight these new guns in. I was using factory ammo and since it was a sight in session I was using different types of ammo.
The AR 15 was first and shot right to point of aim with Winchester 5.56 then I switched to a Federal brand of ammo called Independence. Third shot gun locks up and will not eject. I did the pull the charging handle and tap the but on the bench and got it opened. I found the primer was blown and the case head looked swiped and flow into the ejector. Well enough of that ammo, on the third load and a blown primer, and pressure signs I thought that was all the testing I wanted to do with it. This ending the range day as it was late and the wife was ready for dinner.
So a week later I take the AR10 out for a spin. Same deal , sighting in. I had some Barnes and some Federal Premium. Got on paper and all was good no issues or so I thought. Picking up my brass found two rounds both federal blown primers again. So 2 different guns both new and blowing primers , but with only federal ammo.
I sent the 5.56 ammo back to federal and they say all checked with in spec. All I can say is I won be shooting factory ammo much anymore and when I do it won't be federal.
The AR 15 was first and shot right to point of aim with Winchester 5.56 then I switched to a Federal brand of ammo called Independence. Third shot gun locks up and will not eject. I did the pull the charging handle and tap the but on the bench and got it opened. I found the primer was blown and the case head looked swiped and flow into the ejector. Well enough of that ammo, on the third load and a blown primer, and pressure signs I thought that was all the testing I wanted to do with it. This ending the range day as it was late and the wife was ready for dinner.
So a week later I take the AR10 out for a spin. Same deal , sighting in. I had some Barnes and some Federal Premium. Got on paper and all was good no issues or so I thought. Picking up my brass found two rounds both federal blown primers again. So 2 different guns both new and blowing primers , but with only federal ammo.
I sent the 5.56 ammo back to federal and they say all checked with in spec. All I can say is I won be shooting factory ammo much anymore and when I do it won't be federal.