I recently switched from 124 grain +P+ Federal Premium 'Hydra-Shok' over to 147 grain Federal Premium 'HST Tactical'. However I DO like and continue to use both loads!

Personally I don't use 9mm 115 grain bullets for anything other than general practice; nor do I use Speer, 'Gold Dot' cartridges. Around here we have really cold winters; and the extra wide mouths of, 'Gold Dots' have, historically, not done well against heavy winter clothing.

I've also fired a lot of +P+ ammo through my Glock Model 19; and; so far, I haven't seen any unusual signs of undue frame or barrel wear; but, of course, my G19 is very well maintained; the springs get routinely examined and are, sometimes, changed as often as twice a year.

(I use Wolff Gunsprings; and I keep both ± 1 lb springs on hand and change them either in or out as needed.)