Of course not. No manufacturer will "recommend" or "approve" any "+P+" ammunition, since there are no SAAMI or C.I.P. standards for "+P+". I could create ammo that reaches 100,000 psi and still call it +P+.Doug.38PR wrote: Sig Sauer does NOT recommend +P+ in any of their guns (???) http://www.sigsauer.com/CustomerService/Faq.aspx" onclick="window.open(this.href);return false; (see "can I use +P and +P+")
NATO pressure is in between standard 9mm and 9mm +P in pressure.
9mm Luger (C.I.P): 34,100 psi
9mm Luger (SAAMI): 35,000 psi
9mm NATO: 36,500 psi
9mm Luger +P: 38,500 psi
SAAMI is the US standard, C.I.P is the European standard.