For turkeys, I'm not sure if the Federal 3.5" 2.25 oz loads or the Winchester 3.5" 2 oz Supreme loads kick worse, but they both sure hurt. I remember several times having a sore cheek bone after patterning.

Perhaps the worst, however, is from a single shot, barrel sawed off, stock sawed off, 3 foot long 20 gauge. It was my first gun, my dad found it at a used gun shop. It was cut WAY down. Anyway, used that sucker for deer with slugs, and to this day, that sucker HURTS! Its so short that the hammer will come back and bust you in the nose if your not REAL careful. I found that out the hard way [:@]