Lilja Group Buy Barrel Accuracy

[calshipbuilder]

Your second picture with the caliber is sub MOA. You can measure from center to center of the farthest two holes or measure on the outside of the farthest two holes as you are in the picture and then subtract the caliber.

Yep, I know, 1.037 -.264=.773, which is close to 3/4 moa. I didn't try to measure it exactly because making a point about one decent group would be misleading. It shows some potential, but I wouldn't call this a 3/4 minute gun... yet

On my first grendel build I had a cycling issue until I switched to a carbine buffer, its was jus a fix. On this rifle I just started with a carbine buffer to begin with. I may go to a rifle buffer, but was able to get the gas block adjusted so it runs fine. I think the lower mass of the carbine buffer helps mitigate the secondary recoil impulse from the action cycling, but I am really just guessing.