THUNDERFLASH, I shot a Model 52 in competition for over 30 years. The load to use is 2.7 GRAINS BULLSEYE POWDER AND A 148 GRAIN HOLLOWBASE LEAD BULLET. I retired from competition in 2005. I still have several 1000 bullets left if you need any. I would let them go for a very reasonable price. Cheaper than you can buy them anyplace else. I even have a Dillon 1050 to go along with it. CookE