Well I'm still waiting on the heli board but I'm impressed with the red wolf 22 HP for even being a gen 1 almost like you have to try to miss anything from 20 to 50 yards with the mk2 25 gr so I am trying to reach out farther I tried a 100 yards and can group under a quarter with out any wind and a perfect rest so the gun out shoots me easily I'm also getting 50 shots on a 250 fill im excited about installing a heli board and try 34 gr jsb right now as well