The gun is a LH Remington stainless with a 26" barrel. Aside from being glass bedded, trigger redone and having a Pachmeyer declerator and mercury supressor added, it is box stock. If shoots the Hornady 162 grain SST into less than 1.5 inchs at 300 yards. I have used these bullets to kill one moose at 380, another at 175, a couple of black bears, one elk and a number of incidental deer. I have to date shot it somewhat downloaded with 78 grains of 4831, a Winchester mag primer and the 162 grain SST, as the longest shot likely in the area I have been hunting is only 400 yards. I am about to start working up a load for long distance antelope and deer on the open prairies where shots can be VERY long. What is the maximum velocity you have derived in a factory stock Remington with a 26" barrel using the 162 grain Amax. (Want to use it for its .625 B.C. as it is also often windy out on the flats). Of the likely powders to do this with 7828SSC, 869 and Retumbo, which have you found to be the best. I don't need loads as I will work them up anyhow, but a starting place for previously tried powders and what to expect for reasonable max velocity would be helpful. Thanks for any info.