Manual
24
TUBE INSTALLATION
1. Fully unload your Model 1300. Place the safety in the
“ON SAFE” position.
ALWAYS UNLOAD YOUR MODEL 1300 COM-
PLETELY. INSPECT THE CHAMBER, MAGA-
ZINE AND FEED MECHANISM TO MAKE SURE
THEY DO NOT CONTAIN ANY SHELLS.
2. Open the action and lock it open as explained
previously.
3. Before installing a tube, check the internal choke tube
threads in the muzzle, as well as the threads on the
WinChoke choke tube to be sure they are clean. Lightly
oil the threads with quality light gun oil.
4. Using your fingers, screw the appropriate tube into the
muzzle end of the barrel, tapered end first, notched end
outward. When it becomes finger-tight, use the
WinChoke choke tube spanner-type wrench to firmly seat
the tube. DO NOT OVER TIGHTEN or forcefully tight-
en with wrench.
CHOKE TUBES SHOULD BE PERIODICALLY
CHECKED TO ASSURE THAT THEY ARE
TIGHT AND FIRMLY SEATED. BEFORE
CHECKING, FOLLOW THE SAFETY GUIDE-
LINES OUTLINED ABOVE.
Replacement and additional tubes and wrenches are
available from your Winchester firearms dealer.
WINCHOKE CHOKE IDENTIFICATION
To identify individual WinChoke choke tubes, refer to
the abbreviated indications on the outside rim of each
tube.
SELECTING THE CORRECT WINCHOKE TUBE
The WinChoke choke system is fully compatible with
factory lead or steel shot loads. The chart includes
both lead and steel shot information. Lead and steel
shot perform differently in tubes with the same choke
constriction. For this reason, both lead and steel desig-
nations have proven necessary. In fact, even larger
steel shot diameters result in different patterns than
smaller steel shot sizes. Each designation is inscribed
on each choke tube.
SPECIAL NOTE ON SHOTGUN SLUGS
Cylinder or Improved Cylinder WinChokes are suit-
able for shooting rifled slugs or sabot-type slugs. A spe-
cial 5-inch rifled choke tube (#1820143) is available
from your dealer that is specially made for shooting
sabot slugs in WinChoke barrels. Never shoot slugs or
sabots in any WinChoke barrel with the choke tube
removed.