Winchester 1300 Pump Shotgun Owners Manual

							tact your local Service Representative or U.S. Repeating
Arms Co.
HOW TO REASSEMBLE THE FIRING PIN, BREECH BOLT
AND SLIDE. (12 GAUGE ONLY)
1. Reinstall the firing pin spring over the firing pin. Either
end can go on first.
2. Insert the firing pin (with spring) into the rear opening
of the bolt slide, pin end first.
3. To reinstall the bolt assembly on the slide arm bridge
push or compress the Òknob endÓ of the firing pin suffi-
ciently into the hole in the bolt slide so that the large
space between the grooved ÒknobÓ and the flange on the
firing pin is centered in the round hole in the bolt slide. 
4. Place the curved tongue, located on the slide arm
bridge, into the space between the knob and flange and
slowly release pressure on the end of the firing pin. Let
the flange on the pin pull the tongue toward the rear of
the bolt assembly. This should hold the breech bolt
assembly and the slide arm bridge together during further
assembly.
5. With the firing pin and breech bolt now assembled,
engage the slide arm bridge into the matching cuts on the
slide arms (see Figure 11).6. Hold the slide arms and bolt/slide arm bridge assemblies
together. Start the forearm assembly onto the magazine
tube. 
7. Remove the magazine cap and carefully guide the slide
arms and bolt/slide arm bridge assemblies into the front of
the receiver. As the assemblies enter the receiver, slide
them fully rearward (see Figure 12). 
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FIGURE 12
Carefully guide the bolt
assembly Ñ on the slide
arms Ñ  into the receiver.
FIGURE 11Position the bolt assembly on the
slide arms. 
						

							HOW TO REASSEMBLE THE FIRING PIN, BREECH BOLT
AND SLIDE. (20 GAUGE ONLY)
1. Reinstall the firing pin spring over the firing pin. Either
end can go on first.
2. Insert the firing pin (with spring) into the rear opening
of the bolt slide, pin end first.
3. To reinstall the bolt assembly on the slide arm bridge
push or compress the Òknob endÓ of the firing pin suffi-
ciently into the hole in the bolt slide so that the large space
between the grooved ÒknobÓ and the flange on the firing
pin is centered in the round hole in the bolt slide. 
4. Place the curved tongue, located on the slide arm bridge,
into the space between the knob and flange and slowly
release pressure on the end of the firing pin . Let the flange
on the pin pull the tongue toward the rear of the bolt
assembly. This should hold the breech bolt assembly and
the slide arm bridge together during further assembly.
5. With the trigger guard group removed, insert the bolt
assembly through the trigger guard opening up into the
receiver. The front face and extractor of the bolt assembly
should be facing the barrel or front of the shotgun. The
slide arm bridge should be facing down toward the trigger
guard group opening.6. While holding the bolt assembly in place, insert the
slide arm bars into the breech and connect them to the
slide arm bridge.
HOW TO REINSTALL THE TRIGGER GUARD GROUP. 
Be careful when reinstalling the trigger group. Never force
parts into position. Normally the bolt assembly, slide arms
and barrel should be attached before installing the trigger
guard group. The hammer should be in the cocked posi-
tion and the safety in the ÒON SAFEÓ position. Carefully
insert the trigger guard group into place. It may be neces-
sary to slide the forearm into different positions until the
trigger guard group fits flush into the receiver. When it is
properly installed it will fit easily and the pin will slide in
without excessive force.
Installing the bolt assembly after the trigger guard group is
installed should not be attempted. Consequently, make
sure you have already installed the bolt assembly before
installing the trigger guard group. It is not necessary that
the barrel already be attached to install the trigger group.
Install the trigger group by as follows:
1. Turn your shotgun over with the open bottom of the
receiver facing upward. Hold the trigger guard group at an
angle to the receiver (about 45 degrees) and then engage
the front tabs on the trigger guard group with the corre-
20 
						

							sponding slots in the magazine throat at the forward end
of receiver opening as shown earlier in Figure 10.
2. Rotate the trigger guard group towards and into the
receiver opening, until it is parallel with the receiver. 
3. Align the trigger guard group with the hole in the
receiver and install the trigger guard pin from the RIGHT
side of the receiver (ejection port side) until it is flush
with both sides of the receiver. The pin should pass
through easily with little force. If significant resistance is
felt, remove the trigger group and repeat step one above. 
Your Model 1300 shotgun is now fully assembled.
Immediately confirm that the safety is in the ÒON SAFEÓ
position. Take time to wipe down and clean all external
surfaces as explained under Cleaning and Maintenance
Suggestions later in this manual.
SIGHT ADJUSTMENTS
Some Model 1300 shotguns are fitted with rifle-type open
sights. The style and adjustment system may vary
between models and grades. The proper procedure is to
shoot a group with the sights set as they come from the
factory (intermediate position on both elevation and
windage), and then make incremental adjustments to
move the sight blade and blade holder to position the
group on your target. The procedures below are for themost common type of open sights found on Model 1300
shotguns.
BEFORE MAKING ANY SIGHT ADJUSTMENTS,
MAKE SURE YOUR  SHOTGUN IS FULLY
UNLOADED AND THE MUZZLE IS POINTED IN
A SAFE DIRECTION. PLACE THE SAFETY IN
THE ÒON SAFEÓ POSITION.
UP OR DOWN ELEVATION ADJUSTMENTS.
Adjusting elevation on your Model 1300 requires you to
lift up the rear notch blade on your shotgunÕs rear sight
with your fingers and move the notched elevator either
forward or backward. To raise point of impact, use your
fingers to lift up on the blade and slide the elevator rear-
ward. Adjusting the sight to make your gun shoot lower is
just the opposite Ñ move the elevator forward.
Remember: 
¥ Move the blade up to shoot higher.
¥ Move the blade down to shoot lower.
RIGHT OR LEFT WINDAGE ADJUSTMENTS. 
On most Model 1300 sights, the entire rear sight blade
holder is dove-tailed in the rear sight base. To adjust for
windage, gently move the rear sight blade to the right by
tapping at the dove-tail using a wood dowel or similar
21 
						

							material that will not mar the sight (see Figure 13). Your
gun will now shoot more to the right. Moving the blade
holder to the left is just as easily done. Note how much
you adjust the sight as you sight in your Model 1300.
Remember: 
¥ Move the rear sight to the right to shoot farther to
the right on the target. 
¥ Move the rear sight to the left to shoot farther to the
left on the target. 
Care should be taken not to mar the finish or bend sights
when adjustments are made.
WINCHOKE¨THREADED CHOKE TUBE SYSTEM
Some Model 1300s are fitted with the interchangeable
WinChoke choke tube system. If your shotgun has thewords ÒWinChokeÓ inscribed on the side of the barrel
then you have the system. 
The WinChoke system allows you to configure your
Model 1300 for the pattern and/or choke constriction
your hunt demands. It also offers versatility when using
slugs or sabots. And allows the use of an accessory 5
rifled choke tube for use with sabot-type slugs. 
Your Model 1300 is provided with the WinChoke
screw-in choke tube system. This gives you the finest
possible patterns for target and field situations. Plus, it
is extremely easy to switch choke constrictions to
match your shooting conditions. WinChoke tubes are
fully steel and lead shot compatible. A special choke
tube spanner wrench is provided to remove and 
tighten these tubes. 
CAUTION: DO NOT USE WINCHOKE TUBES IN
ANY SHOTGUN BARRELS NOT SUPPLIED BY
U. S. REPEATING ARMS COMPANY (THE MAK-
ERS OF WINCHESTER BRAND FIREARMS).
ALSO, DO NOT USE ANY OTHER CHOKING
DEVICE IN ANY SHOTGUN BARRELS SUP-
PLIED BY U. S. REPEATING ARMS. USE ONLY
THE APPROPRIATE GAUGE AND TYPE OF
CHOKE TUBES MARKED WINCHOKE IN YOUR
MODEL 1300 SHOTGUN. 
22
FIGURE 13
Carefully tap on the
dove-tail  to change
windage. 
						

							CAUTION: WHENEVER HANDLING ANY SHOT-
GUN FOR THE PURPOSE OF REMOVING OR
INSTALLING A CHOKING DEVICE, MAKE
ABSOLUTELY CERTAIN THE GUN IS FULLY
UNLOADED, AND THE ACTION IS LOCKED
OPEN! NEVER ATTEMPT TO REMOVE OR
INSTALL A SHOTGUN CHOKING DEVICE ON A
LOADED FIREARM!
DO NOT FIRE THIS SHOTGUN WITHOUT HAV-
ING THE WINCHOKE CHOKE TUBE
INSTALLED. PERMANENT DAMAGE MAY
RESULT TO THE THREADS.FAILURE TO FOLLOW THESE WARNINGS MAY
CAUSE DAMAGE TO YOUR GUN AND CAUSE
INJURY TO YOURSELF AND OTHERS.
TUBE REMOVAL
1. Fully unload your Model 1300. Place the safety in
the ÒON SAFEÓ 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.
3. Use the WinChoke spanner wrench to loosen the tube,
turning it counterclockwise (see Figure 14). Finger twist
the tube the rest of the way out of the barrel.
SHOT CONVERSION CHART
Lead Steel
Full *
Improved Modified Full
Modified Full
Improved Cylinder Modified
Skeet Improved Cylinder
Cylinder Cylinder
*
not for use with steel shotUse the spanner tool to remove or
tighten WinChoke tubesFIGURE 14
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							24
TUBE INSTALLATION 
1. Fully unload your Model 1300. Place the safety in the
ÒON SAFEÓ 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 CHOKEIDENTIFICATION
To identify individual WinChoke choke tubes, refer to
the abbreviated indications on the outside rim of each
tube. 
SELECTING THE CORRECTWINCHOKETUBE
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.  
						

							SPECIALCARE OFCHOKETUBES AND CHOKE TUBE
THREADS
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 difficult.
2. Regularly remove your gunÕs tube in order to clean
and oil the threads inside the barrel, as well as on the
choke tube itself. This will protect the threads from
being damaged and also prevent a dirt build up that
would cause the choke tube to become difficult to
remove from the barrel. Clean the threads with solvent
and a small, soft brush like a toothbrush. Wipe com-
pletely clean and leave a thin film of clean oil on the
threads: both on the tube and in the barrel. The
threads of the choke tube and the internal threads of
the barrel should be cleaned after each use and before
the installation of a tube. 
3. Be careful when removing/installing a tube. Use the
specially designed WinChoke spanner wrench.
Damage can result to both choke tube and barrel when
attempting to remove sticky choke tubes. 
4. Never fire your shotgun or run cleaning toolsthrough the barrel of any choke-tubed gun without
having the choke tube installed. CLEANING ANDMAINTENANCESUGGESTIONS
Your Model 1300 will function better and more reliably
over a longer period of time if it is properly maintained
and kept clean.
BEFORE PERFORMING ANY CLEANING PRO-
CEDURES, ALWAYS MAKE CERTAIN THERE
ARE NO SHELLS IN THE CHAMBER, MAGA-
ZINE OR ACTION/FEED AREAS.
You should clean your Model 1300 after every day of
shooting and more often if it becomes excessively
dirty. 
A minimum cleaning includes wiping down the action
and oiling key parts. Most regular maintenance will
also include cleaning the barrel. If you encounter a
function problem (tight action when working the fore-
arm) be sure to give your gun a thorough cleaning to
see if it solves the problem before seeking the services
of our service facility or a competent gunsmith. To
clean your firearm, adhere to the following general
guidelines.
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CLEANINGPROCEDURES
BE CERTAIN YOUR GUNÕS CHAMBER AND
MAGAZINE ARE UNLOADED. ALWAYS WEAR
PROTECTIVE SAFETY GLASSES DURING 
ALL CLEANING PROCEDURES. KEEP 
AMMUNITION AWAY FROM THE CLEANING
AREA. DO NOT TEST THE FUNCTION OF
YOUR FIREARM WITH LIVE AMMUNITION.
Always place the safety in ÒON SAFEÓ position before
beginning any cleaning procedure. 
1. Use a cleaning rod with a tip and patch suitable for the
size of your Model 1300Õs bore. Make sure the patch is
large enough for a snug fit in the bore. Insert the rod and
patch into the barrel at the receiver end and run it back
and forth several times.
2. Inspect the chamber and bore for lead and powder foul-
ing. A normal amount of powder residue can be expected
and is not serious. It can usually be removed by repeating
step one, using a patch saturated with solvent. If or when
fouling should become heavy, it can be removed with a
brass bore brush. Dip or spray the brush with solvent and
scrub the chamber and bore until the fouling is removed.
To prevent brass bristles from breaking off, the brush
should be pushed completely through the bore before
being withdrawn.3. After fouling has been removed the bore should be
wiped dry. Then pass a slightly oiled patch through 
the bore, for preservation. A fine, light gun oil 
is recommended.  
4. Wipe all exposed metal surfaces of the receiver, forearm
and barrel with a clean rag. Finger marks should be
removed because they provide a place where moisture can
accumulate. Any dried oil in the receiver area should also
be removed. 
5. Lightly oil your gun at the points described under
ÒOiling the ActionÓ explained earlier in this manual.
Ordinary good judgment will, of course, indicate that the
metal of the gun should receive a light film of oil any time
the rifle has been exposed to weather or handling. This is
very important and must be done with every gun Ñ even
stainless steel models. Remember, the polished, finely fit-
ted surfaces of the receiver and action mechanisms must
always have a thin film of oil. Make sure that the surfaces
of the breech bolt are especially clean and lightly oiled
with a high quality gun oil. 
6. Inspect the barrel and chamber. Make certain that no
patches have been inadvertently left in them. Remove
any that remain.
7. Wipe all wood surfaces with a soft cloth. 
						

							8. When transporting only, store your Model 1300 in a
quality protective case to prevent scratches and dents.
Store in a dry place to prevent corrosion. Store away from
children.
MAKE SURE YOUR SHOTGUN IS UNLOADED
AND ALWAYS STORE AMMUNITION 
SEPARATELY.
OTHERCLEANINGSUGGESTIONS
¥ Never pour large quantities of oil into the receiver or
other parts. It can drain down to the wood and soften it Ñ
and cause permanent damage and loosening of the stock.
¥ After extended periods of heavy use, your shotgun
should be taken to a qualified gunsmith to have the action
disassembled for professional cleaning and lubrication.
¥ Camouflage models require the same care and cleaning
as non-camouflage. Use the same oils and solvents as
described previous in this manual.
NEVER ATTEMPT TO TAKE YOUR MODEL 1300
APART FURTHER THAN EXPLAINED IN THIS
MANUAL.
This is a specialized, finely fitted mechanism. You may
permanently mar it by attempting to disassemble the inner
mechanism assemblies. If further disassembly for service or cleaning is required, take your gun to a U. S.
Repeating Arms Company recommended Service Center
or a competent gunsmith as explained under ÒService 
or Repair.Ó
ORDERINGPARTS
To order parts, please write our parts department and 
furnish the following: your name, address, and telephone
number. Also specify the model and serial number of your
Winchester Model 1300. When we receive your request,
we will send an order form and a parts breakdown with
prices.
Write to:
Parts Department
U.S. Repeating Arms Company, Inc.
275 Winchester Avenue
New Haven, Connecticut 06511-1970
CAUTION: PARTS ARE MADE FOR
WINCHESTER BRAND  FIREARMS MANUFAC-
TURED BY U.S. REPEATING ARMS COMPANY,
INC., AND SHOULD NOT BE USED IN OTHER
GUNS EVEN THOUGH MODELS MAY BE SIMI-
LAR. IMPROPERLY FITTED PARTS MAY BE
DANGEROUS.
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SERVICE ORREPAIR
If your Winchester Model 1300 shotgun should ever need
repair or service, please utilize one of the world-wide net-
work of U.S. Repeating Arms Company Authorized
Repair Centers for Winchester firearms. If you have any
questions about how to obtain service for your
Winchester Model 1300 shotgun, call or write the
Authorized Repair Center (ARC) nearest you. A list of
ARCs is packaged with your new 1300. If you need to
obtain a new list of ARCs call us at:
1-800-945-1392
If you have other questions about Winchester rifles and
shotguns, call or write our Customer Service Department:
Customer Service
U. S. Repeating Arms Company, Inc.
275 Winchester Avenue
Morgan, Utah 84050-9333
Phone: 1-800-945-5237