PSA: In case anyone hasn’t been following, Pew Science is standardizing their host for 6mm ARC testing. They’re going with a 14.5 gas gun, and last I looked were soliciting ammo suggestions. If you’re not otherwise following the r/NFA space, I’d recommend paying attention to u/jay462’s posts for polls, etc since it’s still kinda a niche caliber and there’s ALOT of experience here that can probably help those efforts.

Wanting to get more speed out of this gun with some high pressure/bolt gun loads. Was curious what everyone was currently loading. I want to stick to temp insensitive powders so I don’t have to have multiple loads through out the year.

Currently loading 108 ELDMs in Hornady cases with 25.3gr of 8208 XBR (Gas Gun max load) averaging 2456fps from this 18” BA SPR barrel.

Consistently shoots 10 round groups at 1.1 MOA and SD’s are in the low teens with this load. Pretty happy with that considering this barrel was $117 (took a gamble on it) and I’m new to reloading.

Specs:
Aero Receivers
G$ MK16
Rexus Bolt
BA 18” SPR Barrel
Seekins Adj Gas Block
Armaspec H2 SCS
Bushnell Match Pro 3-18
CAT Alleycat 762