A friend of mine has been pushing PP for years and I'm thinking I might try it.
I have a Lone Star roller in 45-70. I don't think it's necessary to throat it for PP loads but it sounds like a good idea. Plus, it sounds like it might help with some bore-riders of mine; easing the transition into the lands and allowing me to seat them a bit further out.
Has anyone reamed their throat for PP, and what results have you had going back to conventional lubed boolits or jacketed, afterwards? My pal claims there is no downside, which may be true but always makes me a little skeptical.