...
Unfortunately for her, my wife's Colt Cobra is restricted to standard pressure .38's due to it's aluminum frame. As it is, she won't carry the lightweight Cobra much less anything heavier, so I guess I'll have to get her some spray or something. Wimin... just not much you can do about them!
The only +P ammo that will work in the Cobra is the Win. 95 gr. SilverTip (now discontinued) because the round, even though a +P, is very mild. ...
I faced the same concern when it came to that nifty little M37DAO (made on the older -2 Airweight frame) made for that canceled overseas production run. While some of the barrels used were apparently from 442's, with +P language, when I called the factory they eventually said that the older Airweight frame was not rated to use +P ammunition. (My particular 37DAO model had the standard barrel which lacked the language stating it was rated for +P, BTW.)
Since I wanted to keep that little DAO Airweight running for a long time, I decided to stick with standard pressure ammunition. I didn't want to restrict myself to 158gr LSWC or 148gr WC, so I ended up using the standard pressure 110gr JHP's offered by Federal (Hydra-Shok) and Winchester (STHP). Both offered fine accuracy in my gun, in my hands.
FWIW, I remember in the earlier times (revolver days as a young cop) when the little 95gr STHP had earned a reputation for shooting quite low, due to the lightweight bullet. The 110gr standard pressure modern version doesn't exhibit that ... in my snubs, in my hands. The 110gr bullet weight isn't ideal - I like heavier bullets - but it doesn't seem to offer POA/POI concerns in my assortment of J's.
I finally tried the standard pressure Hornady Critical Defense, using the 110gr FTX bullet. It offered surprisingly less muzzle blast and was a tack-driver, again, in my guns, in my hands. After I'd tried it in some of my J's (37DAO, M&P 340's & 642's), I picked up several boxes of it. I'd primarily intended to just use it in my 37DAO, but I occasionally use it in one of my +P or Magnum rated J's, simply because it's so mild and accurate. The only ballistics testing I can find seems to show it offers acceptable performance, in my opinion, for my needs. Sure, I still think the midweight JHP's pushed to +P pressure are better, overall ... but it lets me carry that older 37-2DAO Airweight without excessively worrying that I'm going to crack the forcing cone or stretch the frame window.
Given my druthers, while I still have a bit of nostalgia for the various 158gr LSWCHP +P loads I used for so many years, I tend to prefer the 125, 130 & 135gr modern JHP's. Specifically Rem 125gr GS +P, W-W 130gr RA38B +P and Speer 135gr +P GDHP.
Oh yeah, I did put back some boxes of the budget Hornady American Gunner 125gr JHP standard pressure load, but I'd be surprised if that bullet would consistently expand when fired at snub nose velocities. Makes for good range fodder, though, along with 130gr Ball, and saved as a backup for the 37DAO's carry ammo, should I run out of the 110gr standard pressure JHP's.
Just some thoughts.