"I unloaded 2, 3 in Magnum 12 ga 00 buckshells from a pistol gripped Ithaca clone 3 weeks ago and I braced for it. "
3 inch mags in a pistol grip 12 ga? You must be a glutton for punishment. I suggest getting some 2 3/4 Federal Tactical 00 buck. It has lower recoil than the standard load and will be much easier to shoot than 3 inch mags.
Hey, Im a dumbass, and dumbasses must learn :)