I shoot Bullseye Pistol and the real experts tell me that there is no difference in velocity or accuracy going from large to small, or small to large.
However, most everyone has heard of progressive presses blowing up when small primer brass is loaded when the progressive press is set up with large pistol primers. One shooter, he saw some pictures of a Dillion 1050 that disassembled, and he told me that he could not believe the damage that occurred. It must have been spectacular.
This is another situation where industry off sets their costs on society. The reloading industry is making higher profits using cheaper primers but selling us the loaded ammunition for the same amount, and we, we have costly accidents when small primer brass gets mixed in with large primer brass.
However, most everyone has heard of progressive presses blowing up when small primer brass is loaded when the progressive press is set up with large pistol primers. One shooter, he saw some pictures of a Dillion 1050 that disassembled, and he told me that he could not believe the damage that occurred. It must have been spectacular.
This is another situation where industry off sets their costs on society. The reloading industry is making higher profits using cheaper primers but selling us the loaded ammunition for the same amount, and we, we have costly accidents when small primer brass gets mixed in with large primer brass.