PRC is not likely not going to hit those levels. I was running 215m's with ADG brass and 147's in a 22" and seeing bolt lift at 57.4. 58.5 was defintialy max at 2900. In a 26" i'd guess that is 3000. I did find that H1000 is slower at book max numbers than RL26 and retumbo by a fair margin. For example book max h1K was 2827, retumbo 2911, RL26 2900. Seems like retumbo and rl26 are pretty close but RL26 was showing less signs of pressur at similar velocities. This weekend I will run 210m's instead of 215's and zero in on a velocity node and see how it goes.