Tools and Suppies for polishing the bore:
cleaning rod
bore brush
scotchbrite pad
wd40
gun cleaning solvent
patches
3/8 drill
Thoroughly clean the barrel removing all fouling wipe dry with dry patches
cut your scotch brite pad so it will encompass the bore brush and cover the bristles entirely.
lube the barrel and scotch brite pad with liberal amounts of wd 40
with cleaning rod attached to your drill work the scotch brite covered bore brush into the back of the barrel slow turning of the drill greatly eases this.
On high speed run the drill and bore brush up and down the barrel stopping at the joint where the choke meets the barrel ( measure it first and mark the rod with some tape so you know where to stop. You want to polish the joint but not run the pad out of the end of the choke. Make sure you keep that brush moving up and down the barrel and do not overlook polishing the back of the bore as well. In between scotch brite pad changes swab with a clean patch and check progress what your looking for is an absolutely smooth glass finish with no ridges pits or scoring marks. In most cases twenty minutes and one pad change in between will leave you with a substantially smoother and better shooting shot gun.
I have yet to do a factory barrel that didnt improve patterns by at least 25%
Before you shoot the gun make sure you swab out the barrel and put a light coat of oil in the barrel. Shoot the gun re oil and then you can go back to your normal maintainence routine.
Why does it work? well heres the theroy as it was told to me . As the shot wad travels down the barrel it encounters friction with the barrel. Any imperfection in the barrel acts as a drag on the wad slowing it down. As this happens your shot charge does not slow down and the shot string length gets longer. When the shot encounters the choke you are actually choking less shot than the choke is designed to handle and choking it in varied densities causing fliers and holes in the pattern. What you want is the shot string to be as short as possible when it encounters the choke. Smoothing the barrel helps to accomplish this.Ideally you would want your shot to all be in the wad until it encounters the wad stripper in the choke. One thing Ive noticed is after polishing the average gun handles the hevier shot charges better than before. thus giving you more pellets out there and even higher hit counts.
I can tell you this much polishing the bores of these shotguns around here had a more dramatic affect in desinty and hit improvement than any of the aftermarket chokes or shells Ive tried. Combined with thes aftermarket products though the improvements are truely amazing. When you can put an entire pattern of 5's into a 10 inch circle at 30 yards youve got an absolutely deadly turkey gun all the way out to 40 without a doubt.
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