The RUGER® P95 pistols are chambered for the 9mm x 19 Parabellum
(9mm Luger) cartridge. Do not attempt to load any other 9mm cartridges
(examples: 9mm short [.380], 9mm Steyr, 9mm Bergmann, etc.) into the
magazine or chamber of the pistol. Never attempt to use caliber .40 S & W
cartridges in a 9mm pistol. The .40 S & W cartridges will jam the pistol.
The Ruger P-Series pistols are compatible with all factory ammunition loaded to
U.S. Industry Standards, including high-velocity and hollow-point loads, loaded
in brass, aluminum, or steel cartridge cases. No 9mm x 19 ammunition
manufactured in accordance with NATO, U.S., SAAMI, or CIP standards is known
to be beyond the design limits or known not to function in these pistols.