Stevenvalleyky
Member
- Joined
- Jan 5, 2017
- Messages
- 276
I recently purchased my first AR15 and first AR10 after only owning only bolt guns for 30 years. I took the new AR10 out to shoot for the first time recently and Im thinking it might have a short throat. I loaded up some Hornady 168 gr BTHP match with the intent to do some ladder testing with several powders. However, at near starting charges of all 3 powders I was trying, I got what appears to be some cratering of the primers. I also had to morter the gun gently to eject unfired rounds and there appears to be a ring around the bullet. Im thinking that even loading them at 2.805" they may still be too long if the throat was cut short. So far I havent tried running them shorter as Im thinking I already have an issue with pressure, although if the bullet is already jamming into the lands, thats gonna raise the pressure more than shortening them a bit. Am I on the right track here?