accurate rifle??

[Double Naught Spy]

The reason I am asking, is that I have a Grendel, with a suspect Liberty barrel, and I am trying to formulate my best course of action to get an accurate rifle in my hands. I guess I should define "accurate"..............sub-MOA. My Grendel was put together by ??, so I am in the dark there, but with the option of sending it to Precision Arms, to get the chamber checked, I am wondering what else he might do to get me where I want to go?

Before spending serious money on sending it to a smith, see about having another (more experienced) shooter give it a go. See about trying different ammo.