Try Epp's I got some Magpro from them a couple years ago, great powder low pressures and lots of speed in 7mmwsm.
if you could get a few fellows to make a order of powder you save on shipping charges
Powers in stock : NITRO 100, SOLO 1000, SOLO 1250, NO. 2, NO.5, NO. 7, NO. 9, 4100, 1680, 2230, 2460, 2520, 2700, MAGPRO, 8700, 5744, 2015, 2495, 4064, 4350, 3100