I take it you’ve fired 12 gauge 3 inch double ought shells 1 handed? I wouldn’t want to personally.
I wouldn’t want to personally.
I've fired 2 1/2" 00 buckshot one hand with semi auto.
It can be done, but I don't want to again, unless I have to.
The semi auto action plus a muzzle break helps absorb the recoil.
What REALLY hurt was a 12 gauge short barrel coach gun with any shells.
I did that once when I was a teenager and had never held a shotgun. It was a double barreled 12. I was so cool I raised it to my shoulder with one arm. I managed to hit both triggers. I didn’t pick up much of anything with my right arm for a few days.