With that knowledge I was getting frustrated with my 300 gr Berrys work up using AA#2 so I shot my test loads right up to where I blew a primer out. Nothing... all 24+" three shot groups... luckily after that my 350gr Xtreme loads with AA#2 shot much better so I didn't shoot them passed the pressure signs.

The unfortunate thing to those light loads is that it wasn't until the very top end when I was getting pressure signs would they actually cycle the bolt and even then it wasn't enough to be able to lock the bolt back. Meanwhile those Underwood loads (the new reworked ones) are still pretty overgassed. This gun may involve adjusting the gas block frequently which is annoying since I have to pull the hand guard off to access it.

I guess I could load those Berry's down to like 1200fps or less and close the gas block and just hand cycle them for a light load but it sort of defeats the purpose of having an AR. Haha

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