Bought this from an oline auction last fall. Appeared like new, really. But the first thing I saw after shooting it was rather severe leading at the forcing cone and first 1/2" of leade. That lead me to pin gage the cylinder throats, and discovered they were oversized at .316, so I assumed gas cutting from standard sized cast bullets of .313. No leading past that so assumed no barrel constriction at the frame. I slugged the barrel at .311/.312 the best I could, as it's a 5 groove. Keeping in mind I'd never cast my own bullets, I tried some .314 HB, did not help. Finding commercial cast bigger than .313 solid base is next to impossible. Tried a light wash of alox along with the traditional lube on the commercial cast .313's helped a little. A very heavy coat of Alox helped more, but was a mess to load them. A closer look at the forcing cone indicated a rather rough machining. I plan to rent the forcing cone kit from 4d rental and recut it, but in the mean time figured I'd start by trying a bullet that fits the cylinder throats, which ultimately lead me to casting my own. Not to mention the specifics of brass preparation for the oversized bullet to prevent swaging them back down during seating. And I'm a big fan of coated bullets, so diy powder coating just went right along with that with a side bonus of increasing the diameter to my need. So I'm thinking (dangerous, I know!) that the bullet diameter (.316) that fits the throats eliminates the gas cutting, but the rough forcing cone is stripping lead as its squeezed into the .312 bore. The cone looks fairly short, so pretty sure an 11 degree cut and polish will be the final touch on that problem. I've never done it, but feel confidant in my abilities and after researching it. But a long enough post on this issue....lol....I will add another mechanical issue that Im not sure how to best correct in another post if interested, that may still be a contributing factor to the forcing cone leading up, but knowing this forum is about cast bullets and not gunsmithing, and Im a newbie here, I dont want to cross any lines.