Owner’s Manual 2020

11
3. AMMUNITION
AMMUNITION NOTICE: FN specifically disclaims responsibility for any
damage or injury occurring with, or as a result of, the use of faulty, non-
standard, remanufactured, hand-loaded or reloaded ammunition, or
cartridges other than those for which the firearm was originally chambered.
Serious damage, injury or death could result from the use of incorrect
ammunition, from firing against a bore obstruction or from propellant
overloads. Use of improper ammunition, such as listed previously will void
the manufacturer’s warranty. Use only commercially manufactured
ammunition made in accordance with SAAMI (Sporting Arms and
Ammunition Manufacturers’ Institute) or CIP (Commission internationale
permanente pour l’épreuve des armes à feu portatives “Permanent
International Commission for the Proof of Small Arms”) standards. Be
certain that the ammunition is the appropriate caliber and loading for the
firearm and is clean, dry and in good condition. The caliber of your FN pistol
is marked on the portion of the barrel visible through the ejection port.
THE FN 503 IS DESIGNED TO RELIABLY FUNCTION WITH
STANDARD PRESSURE AMMUNITION. +P AMMUNITION IS
SAFE TO USE BUT MAY RESULT IN A DECREASE PART LIFE.
THE AMMUNITION SOLD AS +P+ DOES NOT CONFORM TO
SAAMI OR CIP GUIDELINES AND MAY DEVELOP CHAMBER
PRESSURE IN EXCESS OF INDUSTRY STANDARDS. DO NOT
USE +P+ AMMUNITION IN THE FN 503 AS IT COULD RESULT
IN SERIOUS INJURY OR DEATH. DO NOT USE AMMUNITION
SPECIFICALLY INTENDED FOR USE IN SUBMACHINE GUNS AS
CHAMBER PRESSURE MAY REACH OR EXCEED THE PRESSURE
DEVELOPED BY PROOF LOADS.
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.