GiesJ, I shoot several hundred rounds per week, 12ga. mostly and mostly skeet but some trap and sporting. My own reloads, tailored to whatever game we're shooting. I've helped several people start in shotgun sports. Sounds to me like your gun doesn't "fit" well or not mounting properly. I'd also bet you are of thin build or at least have a "thin" facial build,like me. Most often a bruised cheek is the result of "lite" or no contact of your face with the gun comb, not caused by too firm contact! When the gun recoils, even with lite loads, it closes whatever gap there may be with an unpleasant whack, thus the bruise! Is it a field stocked gun? Try others for fit, most shotgunners are happy to help out a new-shooter. Most trap specific guns have very High combs and thus insure firm contact. I use a product called CheekEZ on one of my guns, it is a firm foam pad applied to the comb to improve cheek to comb contact as much as cushion the blow. You should see some of these around any trap or skeet field and find them in mags. , very inexpensive. Don't give up on the game yet, there are solutions! Hope I can help, Jim G.