Yea, I overowork the brass from the start on these cases. Right from the start, I expanded the new necks so I could neck turned them down to .014". Then, neck turned. Then with all that working, I FL sized them all cause some of my bullets had little to no neck tension. Then my necks started getting thicker, which I hoped for after 3 firings. Then started getting thinner. I was told at a point the shoulders would quit providing brass flow. When they got thinner, cracking even after annealing. It only cracked on say 5 pieces out of 100. I got like 600 pieces of 300RUM I didn't neck turn and has been shot 3 times. I planned on annealing them, but just don't have the time yet. I use the welding cayon for heat. I havn't mastered the feel. Don't know if I ever will. I am unfortunately diabetic, and feeling on the ends of my fingers and toes vary quite a bit.

I really should invest in a bushing die.