Browning BT-99 Owners Manual - Page 30

Cleaning Procedures - disassembly

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CLEANING PROCEDURES - BE CERTAIN YOUR GUN'S CHAMBER IS UNLOADED. ALWAYS WEAR PROTECTIVE SAFETY GLASSES DURING ALL ASSEMBLY, DISASSEMBLY AND CLEANING PROCEDURES. KEEP AMMUNITION AWAY FROM THE CLEANING AREA. DO NOT TEST THE FUNCTION OF YOUR FIREARM WITH LIVE AMMUNITION. 1 Remove the barrel and forearm from the receiver as explained previously. 2 Using a shotgun cleaning rod, with tip and patch large enough for a snug fit in the bore, insert the rod and lightly oiled patch in the breech end of the barrel and run back and forth several times. 3 Inspect the bore from both ends for leading and plastic residue. Plastic residue is often left in the bore from the shot cups in modern shotshells. Leading and plastic residue will appear as longitudinal streaks and are usually more predominant near the muzzle and just forward of the chamber. A normal amount of either is common and is not serious. 4 If leading or plastic residue seems excessive you can remove it by brushing the bore with a brass brush. Soak the brush or spray the bore with powder solvent first. Scrub until clean. To prevent bristles from breaking off, push the brush fully through each time before pulling it back through. 5 If your shotgun has barrel ports, carefully clean them with a rag soaked in powder solvent. You may need to scrape residues from the holes with a pipe cleaner or a small nylon brush. Be careful not to mar the blueing on the barrel's outer surface, or scratch the inside of the barrel. 6 After all leading and residues have been removed run a clean dry patch through the bore. Follow this with a final, lightly oiled patch. 7 Wipe all metal surfaces of the receiver, forearm and barrel with clean rag. Then lightly oil your gun at the points described in step 1 under "Assembly Procedures." Regular, light oiling is extremely important to the durability and reliable operation of your shotgun. 29

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CLEANING PROCEDURES —
BE CERTAIN YOUR GUN’S CHAMBER IS UNLOADED. ALWAYS WEAR
PROTECTIVE SAFETY GLASSES DURING ALL ASSEMBLY, DISASSEMBLY
AND CLEANING PROCEDURES. KEEP AMMUNITION AWAY FROM THE
CLEANING AREA. DO NOT TEST THE FUNCTION OF YOUR FIREARM WITH
LIVE AMMUNITION.
1
Remove the barrel and forearm from the receiver as explained
previously.
2
Using a shotgun cleaning rod, with tip and patch large enough for
a snug fit in the bore, insert the rod and lightly oiled patch in the
breech end of the barrel and run back and forth several times.
3
Inspect the bore from both ends for leading and plastic residue.
Plastic residue is often left in the bore from the shot cups in modern
shotshells. Leading and plastic residue will appear as longitudinal
streaks and are usually more predominant near the muzzle and just
forward of the chamber. A normal amount of either is common and
is not serious.
4
If leading or plastic residue seems excessive you can remove it by
brushing the bore with a brass brush. Soak the brush or spray the
bore with powder solvent first. Scrub until clean. To prevent bristles
from breaking off, push the brush fully through each time before
pulling it back through.
5
If your shotgun has barrel ports, carefully clean them with a rag
soaked in powder solvent. You may need to scrape residues from the
holes with a pipe cleaner or a small nylon brush. Be careful not to
mar the blueing on the barrel’s outer surface, or scratch the inside of
the barrel.
6
After all leading and residues have been removed run a clean dry
patch through the bore. Follow this with a final, lightly oiled patch.
7
Wipe all metal surfaces of the receiver, forearm and barrel with clean
rag. Then lightly oil your gun at the points described in step 1 under
“Assembly Procedures.” Regular, light oiling is extremely important to
the durability and reliable operation of your shotgun.
29