Another avenue to look at are pre-fragmented ammo from Glaser or Mag Safe. These rounds are the least likely to penetrate walls, but are very lethal.
Unless they have made advances in their bullet designs in the recent past, Id be leery of the pre fragmented ammo. They have a reputation of nasty surface wounds, but poor penetration. Gimmicky ammo is usually just that, gimmicks, and best avoided.
Also consider that you may want the ability to shoot through things when needed. Ive never really understood the PC over penetration craze. I personally do want to be able to shoot things to get to someone behind it, if need be.
As you can see, the +P is clearly more potent. It has noticeably more recoil too.
I dont find the recoil of +P or +P+ to be that much different than standard loads in the same weight.
For that matter, 125 grain 357SIG and 127 grain +P+ 9mm feel the same to me when shot through the same gun, and I doubt you could tell which was which when you did. Although Ive heard others say different.
But 9mm just doesn't have enough ummph to make a 147g work right. Save the 147's for 357 Sig (where they are the choice).
I think they have the bugs worked out of the newer 147's with the newer bullet designs, like the HSTs.
Ive shot a lot of 357SIG, and unless they have made some advances in the past few years, I didnt find the 147's worked as well as the 125's, and accuracy was not all that great.
If you still think 147's wont expand reliably, you're likely a few decades behind in bullet technology information. It was true, that a few DECADES ago the 147 grain HP's for SD did not always open reliably. Bullet technology has changed quite a lot since then.
Yup. Most of what you still hear thrown around, relates to the old subsonic SMG ammo of the 90's.
I keep Federal and Winchester 147's in my suppressed Glock's. They are noticeably quieter, and have proven effective on a couple of critters Ive shot with them out in the yard. Not to say a 147 that didnt expand wouldnt have either though.
I also checked the CZ website and they stated they don't recommend +p+ ammo, and also said +p ammo causes accelerated wear. So I will probably be going with non +p.
Most of the makers dont recommend +P+, though most dont seem to have a problem with +P these days.
I wouldnt get to overly concerned with either, unless the gun is older, and/or you plan on shooting "a lot" through it. Most dont. A few rounds in practice each month, and carried in your gun likely wont hurt anything.
I have shot a lot of factory +P, +P level reloads, and factory +P+ 9mm through a my Glocks, and they show no real wear because of it. My one 17 is heading towards the 70000 round mark, and is just showing some minor finish wear on the underside of the slide. My 31 (357SIG), was heavily battering the slide in the same place, and barely had a couple of thousand rounds of 357SIG's through it. Both +P+ 9mm and 357SIG are loaded in 40000psi range, and I have a lot more +P+ 9mm through my 17, than I did 357SIG through the 31. Not sure why the 31 was getting so beat up, and the 17 not, but I quit shooting 357SIG through the 31, and went to a 9mm barrel with it.
I also figured out that if the +P+ 9mm and 3567SIG were basically the same, so why waste any more money on the 357SIG. 9mm is A LOT cheaper! I no longer have a 357SIG.