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What does “M1152” mean? It is simply a designation which the U.S. Army uses to indicate that 9mm ammunition is made specifically for their SIG Sauer P320 MHS pistol.

Will M1152 ammo work in your firearm? We would advise only firing M1152 in firearms that are rated for 9mm +P ammunition. This is because its 115 grain bullet is loaded to a muzzle velocity of 1,320 fps, which means it generates more chamber pressure than a regular 9mm cartridge. Glock, Kimber, and S&W handguns will do this no problem, but please ask us if you’re uncertain about your particular firearm.

This cartridge’s bullet is a full metal jacket. It is a highly accurate projectile for target shooting, with a profile that is enhanced to facilitate feeding in a semi-auto. Its flat nose will punch a clean hole through a paper target as well. The U.S. Army would use this type of bullet for engaging threats, although a jacketed hollow point (JHP) is preferable for self-defense because it expands inside of its target. (The U.S. Army cooperates with an international moratorium on the use of expanding bullets in warfare.)