I think it is just a matter of too hard of a powder charge. These were the 1st shots fired for the day, none of my other loads were so stout. The sizing die is the wdx59 whatever, can't think of the name right now and I'm on vacation in South Dakota heading west to Montana and Idaho, so I can't look for a couple weeks. The other dies are Lee. I am not real pleased with the sizing die, as I don't think there is hardly any neck tension on the bullet. I've never annealed before, have no clue as to to how. Guess I better look up youtube, I'm sure there is plenty of how-to video's. Larry's charge of 22.0 gr of 2400 was a nice load, worked better with a 1/3 peanut filler than a bit of TP. Haven't tried laundry lint yet. Trail Boss turned out to be a great accurate load, see the pic's on the Today's Shoot thread.