I was able to find some IMR 8208 and the magnum primers. I hope to load some Win. 308 Nosler 155 gr. .010 off Lands in Federal brass. I have never used magnum primers, but again that is all there was. Could I get some input on the plan, and maybe some suggestions about what powder charges to use. Savage model 12, F/TR, single shot, 30" SS barrel being used for bench rest. Hope to shoot for groups.