Just bought a Win 71 in 348 Ackley IMP..Ackley gives a lot of good loads but with 4350, 4831 and 4320..which tells me that RL-15, RL-22, and RL 19, and H414 orWW 760 have possibility..but hard to find brass, and bulllets negate working up loads if I can find what someone else has all ready done..Normally I would probably use 348 Win book loads and add 5% and work up from there, but trying not to do that..

Anyone got any developed loads along those those somewhat more modern powders would be appreciated, and save wearing out brass..