To 44mag Leo and JustinDad, excellent info! Exactly what I was hoping to find. I have 2 lbs of 2400 and 1 lb Unique. I was just testing the blue dot for a lighter charge weight and powder conservation. Also. The cases that split , fell right out of the cylinder, no tough love required. Im guessing just bad brass at this point. Ill watch and compare my crimper brass next time with your caliper trick!