Fire when ready, 115 +P+ is not going to hurt the Shield.
Um, what? My H&K manual says this:For instance HK, despite being test proven for reliability with more than 30,000 high pressure +P cartridges and 6,000 proof loads without damage or excessive wear to any major components still tell you not to use them.
NOTE: In compliance with NIJ Standard—0112.00,
currently there are no known ammunition types that
meet the general guidelines set forth in this section
that are not compatible with the USP 9mm, USP .40,
or USP .45 pistols. All USP pistols are approved for
use with +P and +P+ ammunition.The use of +P and
+P+ ammunition does accelerate wear and reduce
the service life on the component parts of any pistol,
including the HK USP.
"Plus-P-Plus" (+P+) ammunition must not be used in Smith &
Wesson firearms. This marking on the ammunition designates that
it exceeds established industry standards, but the designation
does not represent defined pressure limits and therefore such
ammunition may vary significantly as to the pressures generated
and could be DANGEROUS.
I may be thinking of the P2000. Which is just a Upgraded USPUm, what? My H&K manual says this:
Conversely, the S&W manual says this:
however you won't get much out of it due to the short barrel of the Shield. It would be a waste of money.
Winchester 9mm 127 gr +P+ clocks 1206 avg out of my Glock 26.
In addition, Massad Ayoob states that round is his favorite load for a Glock 26. It's been proven in numerous Law Enforcement shootings.
That being said, I had an opportunity to discuss this round with a Winchester L.E. Ammo factory rep. He stated he's only comfortable shooting it out of Glocks & Springfield XD's.
I friend of mine purchased a 9mm Shield and asked to borrow enough of my +P+ for his magazine. The first round popped the white insert out of the front sight. That being said, he stated the recoil was manageable.