I sure hope it is. My only snubby is a 2" colt, and doesn't rate +P, so I'm using the 110gr Hornady Critical Defense
Relevant? Very
I've shot and own a bucket of autos, but I'm still very comfortable with 38 Special and 357 Magnum revolvers. The S&W M12 remains one of my all-time favorite guns.
I carry one or two 642s daily, as BUGs typically.
In my old Security and Speed Sixes I used to carry magnum ammo, because magnum, but my reloads were normally .38 +P because my BUG was a Colt Cobra or DS.
I wouldn't cry in my sleep and wet the bed if suddenly I had to carry Gold Dots or one of my other prefered loads and go without a semi-auto.
Lots of discussion elsewhere that what is now +P is equivalent to what was .38 Special before the cartridge was downrated for fear of blowing up pre-Great War guns. I don't know how true that really is. Supposedly the Colt Detective Specials are OK for +P, but not a steady diet of them.
There's a guy who does a lot of testing of short-barreled guns into ballistic gel. If I remember right, the Winchester Ranger/PDX1 round is pretty impressive in his tests. The Critical Defense +P a little less so. The FBI load HPLSWCs just sort of zipped right through the blocks.
Either way, I wouldn't want to get shot with any of them.....