Head1,

Good God, I just calculated the recoil of your load (assuming 8.5 lb rifle) and got 76.3 ft-lbs. Almost 4 times a 12 guage clays load. You've been eating your Wheaties! The 50-140 sharps using the same bullet weight and charge would be around 32.4 ft-lbs or around 1.5 times the 12 guage load.