Manual

13
“Plus-P” (+P) ammunition generates pressures in excess of the
pressures associated with standard ammunition. Such pres-
sures ma
y affect the wear characteristics or exceed the margin
of safety built into some revolvers and could therefore be DAN-
GEROUS. This ammunition should not be used in Smith &
Wesson medium (K frame) revolvers manufactured prior to 1958.
Such pre-1958 medium (K-frame) revolvers can be identified by
the absence of a model number stamped inside the yoke cut of
the frame. (i.e., the area of the frame exposed when the cylinder
is in the open position.
“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 designa-
tion does not represent defined pressure limits and therefore
such ammunition may vary significantly as to the pressures gen-
erated.
Whenever rimless pistol cartridges are used in the cylinder of a
Smith & Wesson revolver, (except M547) full or half-moon clips
MUST be used to both position and extract such cartridges.
Failure to use ammunition clips with rimless cartridges may
result in malfunction of the revolver.
Some brands of ammunition may cause difficulty in extracting
spent cartridge cases from the cylinder or chamber. If this
situation occurs, thoroughly clean the cylinder charge holes or
chamber with solvent. If this condition persists, we recommend
changing to another brand of ammunition.
Smith & Wesson has found wide variations in primer sensitivity
between some brands and types of .22LR ammunition. Smith &
Wesson recommends that before you put your .22LR handgun
into regular use, that you fire several boxes of your brand of
ammunition through it to determine reliability of ignition. If
“failure to fire” occurs, try different types or brands of .22LR
ammunition until a reliable loading is found.
AMMUNITION CONT’D.