Manual

19
WARNING BORE OBSTRUCTIONS
exposed to humid conditions which could cause condensation, or to rain or snow
which might have entered the bore, open the bolt carrier and clean out the
barrel. Inspect the bore visually to be sure that it is perfectly clear. (See “Warning
- Ammunition,” p. 11 and “Care and Cleaning” section p. 28.)
A gun user should recognize that a lodged bullet is a fairly common form of bore
obstruction. Therefore the following information on how a bullet may become
lodged in the bore, and how it should be removed, deserves most careful reading
and understanding!
1. When firing, a bullet may become lodged in the bore if the cartridge contains
no powder, or the powder fails to ignite and only the primer charge ignites,
producing insufficient force to propel the bullet out of the bore.
2. A bullet may also become lodged in the bore when extracting a cartridge from
the chamber (unloading). If the bullet is not crimped tightly enough in the
cartridge case, the bullet may stick in the bore, with only the case being
extracted.
Experience indicates that the two conditions described above occur most
frequently with reloaded ammunition.
When either of the above described (1 or 2) situations occurs, proceed as follows
with the rifle pointing in a safe direction:
a) If the rifle is cocked, move the safety to the “SAFE” position.
b) Remove the magazine from the rifle.
Before loading or shooting the SR-556, be certain the
bore is unobstructed. Firing the rifle with any
obstruction in the bore may result in severe damage
to the rifle and serious injury to the shooter and
other persons nearby.
A MISFIRE or unusual report (sound) upon firing is
always a signal to cease firing immediately and after
waiting for one minute, examine the chamber and
bore of the firearm. It is not sufficient to retract the
charging handle and examine the chamber. You must
remove the magazine, clear the chamber, lock the bolt
carrier open and inspect the chamber visually. Then
close the bolt. Disengage the take down pin, remove
the bolt and carrier (see “Disassembly” p. 24, steps 3
& 4) and inspect the bore visually, and with a rod if
necessary - to be certain it is completely clear of any
obstruction. Failure to detect and correctly remove a
bore obstruction can result in serious injury to the
shooter and bystanders, and damage to the firearm.
DO NOT “SHOOT OUT”
A BORE OBSTRUCTION