That makes it a relative snap then. Just setup a chrono and start cutting back on powder charges until getting in the 2,150fps range. Would IMR4350 be too slow of a burning powder for use in the Capstick? It is my prefered powder in .30-06, and .375H&H, and if the Capstick can run happily with it a lowered velocity, it would make stocking powders as easy as can be for me if I were to entertain my thoughts with the round. (Just 4350 for rifles and 2400 for handguns.)