Need a new air rifle to replace an old airforce condor ss, regulated with 4500 psi tank. A 14.3 grain pellet at 950 fps does the trick. I shot from a tri pod. Have tank, air supply and a tin or two of 22/14.3 grain pellets. I would like to keep shooting Diablo style pellets. Where I shot and need to has developed over the years. I feel like a slug would be the same as a 22lr.