Hmmmm, now you guys have me reconsidering. I ran about 150 rounds of +p through my shorty 9 and it is my carry ammo. Aside from an occasional mag--when I get 12 rounds I have chambered a few times, my gun sees limited +p usage.
What are y'all using instead of +ps?
I am sure a moderate amount of +p will do no harm, especially if you change the springs every couple thousand rounds. Keep in mind there are heavy bullet guys, light bullet guys and medium weight bullet guys. They tend not to agree. I am not a fan of the 115gr ammo.
For me the following are entirely acceptable:
Federal Tactical 124 gr JHP (LE9T1)
Winchester Partition Gold 124 gr JHP (RA91P)
Federal HST 147 gr JHP (P9HST2)
Remington Golden Saber 147 gr JHP (GS9MMC)
Speer Gold Dot 147 gr JHP
Winchester Ranger-T 147 gr JHP (RA9T)
Winchester 147 gr bonded JHP (RA9B/Q4364)
I tend to stick to the 147gr in short barrels.
But, there is no denying that the following are probably "the best of the best." If you want to carry +p, these are certainly "better" rounds than those above, although how much better is debatable:
Speer Gold Dot 124 gr +P JHP
Winchester Ranger-T 124 gr +P JHP (RA9124TP)
Winchester Ranger-T 127 gr +P+ JHP (RA9TA)
Federal Tactical 135 gr +P JHP (LE9T5)