Owner’s Manual 2020

12
CAREFULLY INSPECT EACH CARTRIDGE BEFORE IT IS
LOADED IN THE MAGAZINE. BE CERTAIN THE CARTRIDGE
CASE IS NOT SPLIT OR DEFORMED AND THAT THE
CARTRIDGES DO NOT POSSESS ANY OTHER DENTS OR
DEFECTS.
For best results, use new factory manufactured ammunition from a
reputable manufacturer. Primers, powder, cartridge cases and bullets can
deteriorate with time and cause damage to the firearm or injury to the
shooter or others.
LEAD BULLETS HAVE A TENDENCY TO CAUSE BORE
LEADING, WHICH MAY DRAMATICALLY INCREASE
PRESSURE WHEN A MORE RIGID BULLET DESIGN IS FIRED
IN THE LEADED BORE. BE SURE TO REMOVE ALL CHAMBER
AND BORE LEAD ACCUMULATION AFTER EACH USE. DO NOT
SHOOT CARTRIDGES WITH JACKETED OR MONOLITHIC
BULLETS THROUGH A BARREL PREVIOUSLY FIRED WITH
LEAD BULLETS BEFORE THE BORE IS THOROUGHLY
DELEADED.
CAUTION: STORE ALL CARTRIDGES OF DIFFERENT
CALIBERS IN COMPLETELY SEPARATE AND WELL-MARKED
CONTAINERS. NEVER STORE CARTRIDGES OF MIXED
CALIBERS IN A COMMON CONTAINER OR IN YOUR
POCKETS.
FN has gone to great lengths to ensure the compatibility of the FN 509 with
the widest possible range of ammunition but due to the vast and ever
increasing number and types of ammunition available it is recommended
that you test your pistol with any ammunition that you wish to carry for
protection to ensure reliable functioning.