Update and clarification of a mistake in the data of my original post, I am 0.020 off the lans at 2.880. I looked in the bore this morning with the bore scope and see a tremendous difference in the throat and rifling. There is still some carbon in the grooves of my rifling that I have to work on tonight but I do believe although to be confirmed after cleaning and more shooting that my biggest problem is a very foiled bore. Rookie mistake right..... I can admit it!!!! I guess I’ve ever experienced this before and at least hope this solves the high pressure problems I’m seeing at the reduced powder charged loads. I’m still hoping someone can tell me an easy to find carbon cutting solution. I wore out 2 copper brushes last night.