Hey all, I'm about to get into reloading with my dad, as ammo is starting to get expensive. I'm looking for a .308 load that is going to stay supersonic out to 1000 yards. I was thinking of using the Hornady 178 grain A-Max bullet, RL15 powder, but need help on the primer choice, depth of bullet in the brass, and any other powder choices. I'm going to be using my Weatherby Vanguard with 22" #3 contour barrel, 1:12 twist for this (in my sig). Any recommendations for how much powder? I've heard 42.5-45 grains is good for around 2650-2700 fps, which happens to be a good node for the .308 bullet. I'm going to be experiencing with probably a couple different loads, but I would like it to be close on the first try as I don't have a chrono at the moment. Thanks for the help guys.