Lloyd, I'm sighting one in this morning with 180 Federals, to match the 1/10 twist of the barrel.
I'll break the barrel in with some surplus 147g steel case stuff, clean aggressively between shots, and then shoot for group.
I start all new rifles with an aggressive pre shot cleaning. Manufacturing doesn't always deliver perfect barrels.

Our firearms deer season starts Sunday, and I'm helping my nephew get set up.

If I notice anything that is unusual or may be beneficial to you, I'll report back.

Out there doing it best I can.