Nothing terribly new about your idea as Ken Howell had a series of wildcats based on the 404 Jeffery hull. His 375, 416 and 450 were done in the 1970s. His book details these cartridges and their performance. Not sure what your expectations are in terms of use on game. As bad as the 458 Win Mag gets knocked by some there is no let down when firing a 450 gr bullets at 2,275 fps. 475 gr and 500 gr. loads easily make 2,150 fps with today’s powders. The 458 Win Mag makes around 70 ft-lbs of recoil energy in a 9-10 lbs setup. You’re on par with around 90 ft-lbs of recoil in your wildcat from the same weight setup. In my opinion if both were used on large or dangerous game you would not see any real difference in their ability to dispatch game at 200 yards and closer.
Last edited by Rossimp; 11/05/21.
