I have a Marlin 1894 in .44 Magnum with micro groove rifling and an older Marlin 1895 (1970s era) that does not say micro groove on the barrel but neither rifle will shoot lead boolits well, that is traditionally lubed lead boolits. I have acquired the necessary stuff to PC cast boolits and wonder if they would perform better than lubed boolits in these rifles. Would the PC provide enough localized hardness to stabilize them in the shallow rifling? I'm guessing that somebody has tried this and wonder about their results. Thanks for any comments!