Winchester Repeating Arms 101 - Manual (Page 24)

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c hoke t ube i nStallation
1. Place the “safety”/selector in the on safe position.
Always make sure the shotgun is completely unloaded.
Always keep the muzzles pointed in a safe direction.
2. Before installing a tube, check the internal choke tube
threads in the muzzle, as well as the threads on the
choke tube to be sure they are clean. Lightly oil the
threads with a high-quality, lightweight gun oil.
NOTICE! Failure to clean and oil the threads on
the choKe tube could result in the choKe tube
seiZing in the barrel.
3. Using your fingers, screw the appropriate tube into the
muzzle of the barrel, tapered end first, notched end
outward. When it becomes finger-tight, use the choke
tube wrench to firmly seat the tube.
NOTICE! the choKe tubes should be Periodically
checKed to assure they are tight and FirMly
seated. beFore checKing, Follow all choKe tube
reMoval and installation “saFety”/selector
guidelines Previously outlined.
c hanging l ength of p ull (S pecial m oDelS )
beFore changing triggers or PerForMing
adjustMent Procedures, Place the “saFety” in
the on saFe Position. oPen the action and MaKe
All Model 101 shotgun barrels are threaded to accept
the Invector-Plus ™ choke system. Standard Invector,
WinChoke and Invector-Plus tubes are not
interchangeable. Confirm the choke system of your
shotgun by looking on the right side of the barrel where
the specifications are inscribed, where the choke markings
are normally located.
The constriction of each choke tube is indicated twice on
the choke tube: on the side of the tube, and indicated
with a “notch” code on the top rim of the tube. The
included universal choke tube wrench is used to remove
and install choke tubes.
Some target shotguns include premium extended choke
tubes. The constriction of premium choke tubes is
indicated twice on the choke tube: on the side of the
tube, and indicated with an abbreviation in the colored
band. The constriction of flush fit choke tubes is
indicated twice on the choke tube: on the side of the
tube, and indicated with a “notch” code on the top rim
of the tube. The included choke tube T-Wrench is used
to remove and install extended choke tubes.
Choke tubes are compatible with factory ammunition
that has been loaded in compliance with SAAMI
specifications, including magnum lead and steel shot
loads, sabots and shotgun slug loads.
Replacement and additional tubes and wrenches are
available from your Winchester Repeating Arms dealer, or
by contacting the Winchester Repeating Arms Customer
Service Department. See page 32 for contact information.
c hoke t ube S election
To help you choose the correct choke tube for each
hunting and shooting situation, all Invector-Plus choke
tubes are inscribed on the side with the patterns
they produce with both lead and steel shot. Each
Invector-Plus tube also has notches in the top rim of the
tube (Figure 20, page 23). These notches are a code to
allow you to determine the choke designation while the
tube is installed. Rim notches refer specifically to lead
shot. Use the charts on this page to cross-reference from
lead to steel, and determine the appropriate tubes for your
ammunition and hunting/shooting situation.
Several choke tubes are supplied with your shotgun.
The choke tubes listed are also available as accessories.
Remember, WinChoke, Standard Invector and Invector-
Plus tubes are not interchangeable. Before removing or
installing tubes, or reading the rim notch code, make sure
your shotgun is completely unloaded and the “safety” is in
the on safe position.
c hoke t ube r emoval
1. Place the “safety”/selector in the on safe position.
Always make sure the shotgun is completely unloaded.
Always keep the muzzles pointed in a safe direction.
2. Use the choke tube wrench to loosen the tube,
turning it counterclockwise. Finger-twist the tube the
rest of the way out of the barrel.
R i m
N ot c h e s
Pat t e R N w i t h
L e a d s h ot
Pat t e R N w i t h
s t e e L s h ot
e x t e N d e d * * x - F u L L t u R k e y * *
i F u L L *
i i i m P. m o d i F i e d F u L L 1
i i i m o d i F i e d F u L L 1
i i i i i m P. c y L i N d e R m o d i F i e d
i i i i i s k e e t i m P. c y L i N d e R
N o N ot c h e s c y L i N d e R c y L i N d e R
* Not for use with steel shot. Using an over-tight choke constriction with
steel shot will result in an ineffective “blown” pattern.
** Extra Full Turkey, extended with ports. Do not use with steel shot.
1 When more than one choke tube is listed for a given steel shot pattern, use
the more open choke listed for high velocity, larger shot size steel loads.
FIGURE 20
N o N ot c h e s
F i v e N ot c h e s
F o u R N ot c h e s
t h R e e N ot c h e s
t w o N ot c h e s
o N e N ot c h