Polishing Your Shotgun Barrel - Mississippi Hunting and Fishing Forums
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Old 02-15-2012, 07:18 PM   #1 (permalink)
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This came from a friend of mine on another forum. Very Useful.


To polish a barrel using this method the following items will be needed.*
this has been a proven safe process that has shown great results!!
you will see a mirror finish,better patterns(in most cases ) as well as easier cleanup of your barrel !!!!!!
Green Scotch Brite
J&B Bore cleaner www.Brownells.com
J&B Bore Bright
Kroil Kreeping oil *Brownells.com OR www.kanolabs.com

A Drill
Cleaning rod (i use a Hoppes 1/4"- 3pc without the handle)
20ga brush for 12ga ---.410 or 44cal. brush for 20ga.


NOTICE NOT recommended to polish chambers,ports,or chrome lined barrels.
it is NOT Recommended to polish barrel with turkey choke installed.
use a MODIFIED OR IMPROVED CHOKE during polishing process

i have polished over gas ports and barrel ports with No ill effects. but use caution. after polishing be sure to clean all materials out of ports.

using a empty 12ga. hull and a empty 20ga. hull i drill out the primer to the size of my cleaning rod. i insert the 20ga. hull into the 12ga. hull so that brass is showing on both ends.

for 3"chamber use 3"hull for 3.5"chamber use 3.5"hull


this will act as a guide for the rod and a stop for your brush as well as protecting the chamber from being polished.

1. wrap scotch brite around brush

2. apply Kroil and J&b Bore cleaner.


3. insert into chamber push forward until you can insert shell guide fully into chamber.

4. start drill as you move rod towards muzzle.

* * *caution--- do Not let patch spin in one place in barrel. rod must be in forward or backward motion while drill is spinning rod



i usually do 100 or more passes using J&B Bore Cleaner
then swab the barrel with Liquid bore cleaner (of your choice) then follow with a couple dry patches to clean out the barrel .

Next step would be to follow steps 1 through 4 using J&B Bore Polish and Kroil.
i usually do 100 or more passes using J&B Bore Polish as well.


add fresh Scotch Brite and J&B and Kroil as needed through out the process

after polishing is complete flush barrel with liquid bore cleaner (your choice) then clean and dry patch.

besure to clean all ports and choke threads when finished

the following pics of what comes out of a barrel during polishing. to the eye this barrel was as clean as possible. i had cleaned it with some of the best solvent on the market. then dry patched until the patch came out white.



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Old 02-15-2012, 07:35 PM   #2 (permalink)
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I was thinking about sending u a pm today about this..... Got a 870 needs a polishing


Good Stuff!!
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Old 02-15-2012, 07:49 PM   #3 (permalink)
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I'll have to give it a try.
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Old 02-16-2012, 06:38 AM   #4 (permalink)
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Does polishing your barrel honestly make a noticable difference in shot pattern? I would really like to see a before and after pattern picture.
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Old 02-16-2012, 07:48 AM   #5 (permalink)
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Average increase is about 10-15% in number of hits inside your core 10" pattern at 40 yds, but have seen more.
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Old 02-16-2012, 08:18 AM   #6 (permalink)
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Here are some pics from my friend that originally posted the process from above. His gun was originally a 190 at 40 gun, and he polished with a little different method, and it got him to around 211. He polished again with the above method, and it bumped him to a consistent mid 230s gun.

Mossberg 835 24"barrel .670 Pure Gold
Hevi 13 2 1/4oz 3.5" #6's



Before


After

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Old 02-16-2012, 08:50 AM   #7 (permalink)
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Thats a pretty good increase.
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