Quote Originally Posted by Great-Kazoo View Post
What if anything changed from the original baseline, either load or rifle wise ?
Only change really is Lapua brass instead of Winchester or similar. Always use 178bthp, fgmm primers, and until yesterday's attempt with some load testing for 2000-MR, powder was rl15. But the Lapua brass has not shot well with either powder. Dunno if we got a bad lot or if something has to be done in addition to the typical prep work we use on plebeian fare brass. Have tried both neck sizing and fl sizing, loading slightly long (2.82) and SAAMI, and tried across ssg3k, tikka ctrx, and ruger rpr. All three guns shoot the other loads and factory match ammo very well, but not the Lapua.