Manual

67
Charging & Priming The
System 1
™
12 Gauge Shotgun
The System 1
™
- 12 Gauge muzzleloading shotgun features an internal
(screw-in) choke tube. Improved Cylinder, Modified, and Full Choke tubes
are available as accessory items.
Never attempt to install a choke tube or remove a choke tube from a load-
ed firearm. Always ensure that the firearm is UNLOADED. FAILURE
TO HEED THIS WARNING COULD RESULT IN AN ACCIDENTAL
DISCHARGE CAUSING INJURY AND/OR DEATH TO THE SHOOT-
ER OR BYSTANDERS AND DAMAGE TO PROPERTY.
1.
Never fire your Thompson/Center Shotgun, which has been designed
to accept internal choke tubes,
WITHOUT A CHOKE TUBE INSTALLED.
This will result in damage to the threads in the barrel and could render your
shotgun inoperable with regards to using the internal screw-in choke tubes.
2. The threads of your T/C choke tubes should be kept clean and lightly
lubed at all times. When installing the choke tube into the barrel, make sure
the muzzle is pointed away from you, in a safe direction, and never “force” the
choke tube into the barrel. If the tube does not screw-in easily, the threads in
the barrel or tube could be clogged, or you could be cross-threading the parts.
The choke tube should screw in easily by hand. Use the wrench provided to
tighten it until snug, but
DO NOT OVER-TIGHTEN IT AS IT COULD
DAMAGE THE TUBE
.
3. (See Choke diagram) Wrench shown engaging slots in choke tube. To
insert, turn clockwise. To remove, turn counter clockwise.
4. Thompson/Center’s screw-in choke tubes
are marked
IMP CYL, MOD, or FULL. The
MOD and IMP CYL tubes can be used with
steel shot without damage to the barrel or
choke tube.
THE FULL CHOKE TUBE
SHOULD NOT BE USED WITH STEEL
SHOT
. These tubes are intended for use in
Thompson/Center shotguns
ONLY and
should not be used in other brands of guns.
12 GA. 
BARREL
Choke
Tube
T/C Choke Wrench