Winchester Repeating Arms 1300 (Historic Manual) - Manual (Page 17)

4. Using your fingers, screw the appropriate tube into the
muzzle end of the barrel, tapered end first, knurled end
outward. When it becomes finger tight, use the
WinChoke choke tube spanner wrench to firmly seat
the tube (Figure 8). Do not overtighten or forcefully
tighten with wrench.
CHOKE TUBES SHOULD BE PERIODICALLY CHECKED TO
ASSURE THAT THEY ARE TIGHT AND FIRMLY SEATED.
BEFORE CHECKING, FOLLOW THE SAFETY GUIDELINES
OUTLINED ABOVE.
Replacement and additional tubes and wrenches are
available from your Winchester firearms dealer.
W IN C HOKE C HOKE I DENTIFICATION —
To identify individual WinChoke choke tubes, refer to the
abbreviated indications on the outside rim of each tube.
S ELECTING THE C ORRECT W IN C HOKE T UBE —
The WinChoke choke system is fully compatible with
factory lead or steel shot loads. The chart at right 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 shot
designations 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.
S PECIAL NOTE ON S HOTGUN S LUGS —
Cylinder or Improved Cylinder WinChokes are suitable
for shooting rifled slugs or sabot-type slugs. Never shoot
slugs or sabots in any WinChoke barrel with the choke
tube removed.
S PECIAL C ARE OF C HOKE T UBES AND
C HOKE T UBE T HREADS —
1. If your gun is equipped with WinChoke choke tubes, do
not use a brass brush to clean your gun unless a choke
tube is installed in the barrel. Bristles could break off
and lodge in the threads, making installation and
removal of choke tubes difficult.
2. Regularly remove your gun’s tube in order to clean and
15
C HOKE /P ATTERN C ONVERSION C HART
L EAD S TEEL
Extra Full *
Full *
Improved Modified Full
Modified Full
Improved Cylinder Modified
Skeet Improved Cylinder
Cylinder Cylinder
*
not for use with steel shot