AZ Patriot 17...26" Barrel, COAL 3.560, Case Trim 2.820, Powder RL 26, @ 88.1 % fill, 77.99 Grain, will get you slightly over max pressure 62,025. Velocity 3422 FPS. If you plan on starting at 70 Grains then the pressure is 45807 a very safe starting point. I am waiting to do more testing later...