I'm enjoying shooting my Stevens 44 1/2 25-21 and have shot all my loaded shells. I had purchased 40 rounds of smokeless powder rounds from Buffalo Arms. Now it's time to start reloading: got the dies, bought several pounds of 4227 and several boxes of 87 grain cast bullets. I thought I'd start with 7.0 grains of 4227 but I'm unsure of the proper primer, any suggestion would be appreciated.