Woke up with a brain cramp, does anyone have a favorite powder choice for 45 acp with small primer pockets. I understand that spp 45acp was introduced by manufacturers whose goal was reducing the lead from primers, and that operators of progressive presses hate it when a spp case finds its way into the run of lpp brass. My research to date indicates minimal difference in velocity between spp and lpp when compared with similar bullets and loads. I cannot find any reports of powder choice comparing spp to lpp brass.
Thanks for your responses.