My 12.5 Grendel pistol build

[southpaw]

I finally got out to see how it shoots. Hornady American Gunner ammo, 15 shot 50 yd groups, shot from bench with bipod. I need to figure out a better way to shot this pistol from the bench before I try handholds at longer distances. It doesn't fit my shooting rest well, I'll probably try sandbags.