Ladder testing isn't working.... so try something different.
Start at mimumum and working to max in one grain increments. Seat the bullet .010 off the lands. Load 5 of each and shoot 5 shot groups. See what it tells you. Maybe something will jump out at you then.
I would have to agree that 200yds just isn't doing you any good for a ladder test. Consider OCW test at 200 or as per jehunter recommendation and shoot 5 shot groups to search for a node.
























































