I do not stand corrected
I said "IMHO" the best revolvers Smith EVER made. And humble it might be but I have more Smiths than I care to count including many non 12s than I would not part with. Still feel like the 12s are great guns, and correct, not made for a steady diet of +P. Probably no better or worse than any other alloy frame Smith. NOTE: I am trying to sell a Mod 19 in the classifieds. Bet a Mod 12 would not have lasted ONE day at same price and condition. -- Okay, my name is Tom and I am a Smith M&P junkie. I love the Mod 10 too!! But I shoot the crud out of them. You should see my truck gun.
Had to revise on the "sting" issue. "They" say the full wad cutter is a pretty fair defense load. Maybe, actually, probably. But your "as new" 12 will shoot all the modern .38 Special HP loads you can stuff through it with no problem. Sure as heck not limited to 148 WC. Not suggesting you do, just more of MHO.--Regard, Tom Soutter