I recently had to rebarrel a Ruger 77 mark 2 223 Remingon. Unfortunately the new barrel does not like the same load as the old barrel which was sub moa. As luck would have it I just got luck and stumbled upon that load right out of the gate.

Planning on testing bullets to see what this barrel like and then adjusting load and seating depth till I get to where I want to be. Will be doing 3, 3shot groups to determine what bullet it likes. Do you feel that cleaning the barrel in-between bullet groups is a must?

Thanks
CT

There is a reason why you never hear of anyone shooting a 308 winchester AI.... It can't be improved upon!! Molon Labe