I have an old Winchester 94 (1943 production) with a good bore that shoots ok with all the factory loadings. I can manage 4" at 200 yards with the iron sights and lever revolution ammo. I want to shoot this old girl a little more so I am looking for the insight on 30 caliber bullet molds. 180grn possibly, round nose I am guessing. Diameter of about .309 as I know these old girls like fat bullets. So what have you guys had luck with?