The Power of Rifling in a Gun

The rifling in a gun, you don't get that torque for free. So what would happen to you if I were to put a pistol in your hand with a left hand twist in the rifle, rifling? Pull the trigger and then let the recoil happen. And if you think about where the muscles are in your forearm, if it goes back towards the side, it cannot come straight back. That just, I got tennis elbow again, just from simulating it. Thanks a lot.