I've tried the aforementioned ammo, federal 110g tsx, remington 160 core lokts. I don't trust my data with those first few because there was a lot shooter error and flinching from firing a magnum. As I practiced more, the hornadys gave me the groups above. I didn't do much of a barrel break in. I don't think the flyer has to do with a fouled barrel because I didn't clean between the two pictures.
@shoes- withe the twist rate of my barrel I should try 150-160 grain bullets which would also be more appropriate for elk. I was thinking of doing this but I'm afraid of trying 3 or 4 different boxes of ammo at 50 buck a pop and getting the same result. I'll try it anyway. I wish they sold 5 cartridge boxes. LOL.
I guess if my cold barrel shot is consistently 1.5 to 2 moa to the left I could just account for it in the field. I was just wondering if anyone had a similar experience. None of my other rifles do this.