So I finally got to go to the range with the AR10 I built in 7mm-08, here are the specs again.
RPG billet Lower
RPG Matched Upper
Troy 13.8" Rail
PRI ADJ gas block
Bartlein 5R barrel custom made to 20.5" AR10 Barrel
Shadow Weaponary Nickle Boron BCG
BCM Charging Handle
LaRue 20MOA 1 piece 34MM Mount
Bushnell Elite Tactical 3.5x21.50 G2
JEC Level Bubble
RPG Ti 30Cal Suppressor
So after getting it sighted in and barrel broke in with factory ammo, I ran my groups of hand loads. Used 1X fired Remington brass, CCI Primer, 162 AMAX over Varget powder, started at 40.0grs and worked up in .2grs to 40.8grs. Best was three shot group using 40.6grs, pulled one of the shots so that's why it was a three shot not four shot. measured under.500", pretty good for a gas gun. Now I just need to load ten more to run through the suppressor and chrono.
Next is my 308, thanks to Chad for a couple pointers I got it running 178 AMAX out of my AAC-SD at 2600 FPS AVG with the 10 shot spread being 2606 to 2591 so ES of 15 FPS. Here is a five shot group measuring just under .500"
Anyway, thanks for looking and I'm really looking forward to getting with Fireman to stretch these guys out to 800.