The round flat points feed pretty well, the lyman 330g HP feeds like a charm also, haven't tried the others, the screwed up part is it doesn't like the round nose, at least the Lee 's, been suggested it's the mag and I suspect that is correct. I may have to part with some cash and get a couple better ones, I am using the mags midway sells for the .450BM, not an actual factory mag. I built this one from the ground up so never actually had a "factory" mag to compare to.