9mm M&P loads

According to the M&P manuals, +P+ ammo MUST not be used in S&W firearms. Ive never used +P+ ammo before, but Ive put about 50 +P ammo through my M&P. Here is the link. Page 13

http://www.smith-wesson.com/wcsstore/SmWes...r/MP_Manual.pdf

Hmmm ... Without downloading the manual I would suspect that +P would be out then too eh?

NOTHING is rated for +P+ ammo. That's because there is no definition for +P+. SAAMI defines the specs for a load, and sometimes a +P load. +P+ means it is a load beyond the SAAMI specs and could be anything. S&W supports SAAMI spec ammo, which includes +P.



sure, cor-bon may sell a +P+, but technically bubba's 9mm with 6gr of titegroup in it is +P+ too. It'll also break your gun.



with +P+ you simply take your chances. In a moder durable pistol, I'd probably trust cor-bon, but not the terrorist-ripper 4000 +P+ with ultramysticdeathalloy. But it's still mycall.

It says +P ammo should not be used in S&W medium K frames revolvers manufactured prior to 1958. So for an M&P40 or M&P9 you should be good.

ok, maybe Iw as unclear.



the M&P manual spefically states that the M&P only supports ammo within SAAMI spec.



By implication that includes +P as that is a SAAMI spec.