Next time you feel the urge to bench some slugs, do like me....
First, use a wearable recoil pad like the PAST. Heartily recommended even for manly men.
Second,use good bench form. Shoot off your hands and not sandbags. Use a rest under the support hand for steadiness.Stay as erect as you can.
Third, add as much weight to the weapon as you can. A couple homemade recoil reducers(old thread) in the magazine, a Side Saddle loaded with shells, weight in the stock, and so on. This can be removed when hunting starts. Nobody feels the kick when there's hair or feathers in sight.
Fourth, an anti inflammatory taken in advance is a good idea.
Bruce, glad to hear I helped.....