I am shooting a tikka T3x in 30-06. I have 3 different loads worked up for this rifle, a cheap practice/plinking load using winchester brass and 2 "good" loads using lapua brass. I measured and remeasured the brass again last night and all came out .003 to .004 of shoulder bump. After looking at it again this morning I am not sure if it is case head separation or just a mark left by the die. Here is a couple of photos, let me know what you think.
