snox801
Well-Known Member
Ok guys full story.
I have a 16" bolt 6.5 grendel, and a 18" 6.5 grendel.
Both setup as point and shoot max point blank range funds for thermals.
Anyway. When hammer cut the 99gr I did load work with those and xbr powder. Both showed pressure at the same time. Also the same spot as my brothers two grendels. Fast forward to the 97 absolute.
I couldn't get enough powder in the case with xbr to get any more speed so after looking rl10 looked like a winner. Faster burn rate and much less case fill allows more room for powder. Worked up a load in the 16" bolt and made it to just shy of 3k FPS.
Went to my ar and can't get any more speed than the 99 without creating a belt like rim at base of case. I can't even get to the same speed or charge as Barnes has in for the 100gr.
No flat primer no brass flow nothing else for pressure. I've determined it seems to be opening the bolt to early is all I can figure. I'm gonna do a adjustable gas block and hope this helps. Am I'm heading in the right direction?
I have a 16" bolt 6.5 grendel, and a 18" 6.5 grendel.
Both setup as point and shoot max point blank range funds for thermals.
Anyway. When hammer cut the 99gr I did load work with those and xbr powder. Both showed pressure at the same time. Also the same spot as my brothers two grendels. Fast forward to the 97 absolute.
I couldn't get enough powder in the case with xbr to get any more speed so after looking rl10 looked like a winner. Faster burn rate and much less case fill allows more room for powder. Worked up a load in the 16" bolt and made it to just shy of 3k FPS.
Went to my ar and can't get any more speed than the 99 without creating a belt like rim at base of case. I can't even get to the same speed or charge as Barnes has in for the 100gr.
No flat primer no brass flow nothing else for pressure. I've determined it seems to be opening the bolt to early is all I can figure. I'm gonna do a adjustable gas block and hope this helps. Am I'm heading in the right direction?