Anyone slugged the bore on a BLR in 450 Marlin?? I was given a stainless BLR as part of a tip this past fall during my guiding season. It shoots jacketed bullets very well but I want to shoot cast. I have a Lyman 457163 and just cast up a bunch then powder coated them. ( I didnt size them as the only sizer die I have right now is .457) I have ordered a Lee push through die in .460. Anyway my finished bullets measure right at .463. Are these to big?? I know I need to slug the bore, Im just checking to see if anyone has done a BLR yet.