Glad you read the link. I like to use military 223 brass because it lets me turn the necks to a uniform thickness. I'm at the max neck thickness my gun can tolerate. That may help me a bit with reduced neck splits. I get very high yeilds from my reforms. The losses seem to occur most at the initial sizing step when the case comes out of the die looking like a long neck beer bottle. The neck will crease or the shoulder will collapse. I did not get high yeilds when reforming commercial 223 brass. The commercial Remington and Winchester cases I reform do not require neck turning but they seem prone to split necks.