I’ve been running 6ARC in a number of platforms for a while now, both gas and bolt, and my latest 20” gas gun has confirmed something I felt worth mentioning:
Leverevolution (LVR) is among the most optimized powders for this cartridge, which is nothing new, but for some strange reason the following load just seems to work in everything I shoot regardless of barrel length or gas/bolt:
Berger 105gr Hybrid
28.5gr LVR
GM205MAR
2.245” COAL
Starline or resized Lapua 6.5 Grendel brass
I’ve got a bunch of 109 LRHTs I use in a 6mm Creedmoor, and wanted to go back and try these in the new 6ARC barrel. Sure, I could get them to shoot fine, but when I used the above load as a control I just shook my head and thought “I should just stick to this.”
The other bullet that works really well in my shorter gas guns is the 103 ELD-X, but I have some barrels that don’t like it.