Regular cleaning is important in
order for your gun to operate correctly and safely. Taking
proper care of it will also maintain its value and extend its
life. Your shotgun should be cleaned every time that it is used.
A gun brought out of prolonged storage
should also be cleaned before shooting. Accumulated moisture and
dirt, or solidified grease and oil, can prevent the gun from
operating properly.
Before cleaning your gun, make absolutely
sure that it is unloaded. The gun's action should be open during
the cleaning process. Also be sure that no ammunition is
present.
After shooting, clean and lubricate your
shotgun. At the end of a hunting season, or annually, have your
gun completely cleaned, including internal mechanisms, by a
competent gunsmith. Proper periodic maintenance is important for
the reliable functioning of any firearm.
Before cleaning, make sure the gun is unloaded. Keep the chamber
open.
To minimize the possibility of damage to the screw-in choke
inserts and the barrel threads, it is recommended that a set of
choke inserts be kept correctly tightened into the barrel at all
times, including storage and cleaning. Cleaning the barrels
without the choke inserts in place can push dirt and other
fouling into the barrel threads, which will interfere with
proper installation of the choke inserts.
1. Disassemble the firearm.
2. Clean the bore with care by passing a cleaning rod with a
cotton patch coated with gun oil to remove combustion residues.
If necessary, use a bronze brush. Also include the chambers in
your cleaning operation.
3. Run a clean dry patch through the bore to remove oil
residues.
4. Lightly oil the inside of the barrels with a clean cotton
patch coated in gun oil.
5. With similar procedure, clean the internal face of the action
body (especially around the firing pin holes) and lubricate
lightly.
Do not pour lubricant into the firing pin holes.
6. Clean and lubricate lightly the mechanism of the forend iron
and relative hook of the barrels.
The hinge pin area is a very important mating surface. The
receiver and forend iron are subject to very high loads.
Improper lubrication of these components can cause seizing of
parts or malfunctioning of the shotgun. Before using the
shotgun, make sure that lubricant is present as instructed.
7. Clean with care the external surfaces of the gun to remove
any trace of dirt, sweat and fingerprints. Apply a thin film of
gun oil with a cotton patch.
Use lubricants properly: you are responsible for the proper care
and maintenance of your firearm. Do not apply excess oil.
Accumulation of oil attracts dirt, which can interfere with the
functioning and reliability of the gun.

Excessive oil and grease obstructing the bore - even partially -
is very dangerous when firing and may cause damage to the
shotgun and serious injury to the shooter and bystanders.
Never spray or apply oil to the shotshells. If the shotshell
charge is affected by the lubricant, it may not be ignited, but
the primer firing may push shot into the bore where they may be
lodged. Firing a subsequent shot into the obstructed bore may
damage the gun and cause serious injury or death to the shooter
and those nearby.
Once disassembled, the firearm (barrel/forend and
receiver/stock) should be stored in the supplied case or box.
Before storage, always check the conditions of the gun and its
case or box. Make sure that they are perfectly dry. Moisture and
water could cause damage to the shotgun.