Copper fouling

[Jack]

The other classic fouling remedy is JB bore compound. JB is an abrasive that's too soft to effect barrel steel, but will remove copper and carbon fouling.
Put some oil ( I use Kroil) on a patch, then put some JB on the patch and run the patch through the bore several times. You want the patch to fit the bore, but not super tightly. I use a new patch with oil and JB about every 10 passes through the bore.
JB is kinda labor intensive, but, one little tub of JB lasts for many years, and JB works, posilutely.
A lot of benchresters use it on their super expensive barrels, so it's a well proven (and safe) remedy.

[Rapier]

$1.25 Cent Foul Out

Here is what you can do to make a home made foul out......

1) Make a solution of 3 parts water, 1 part white vinigar and 1 part household amonia. You can also just use Amonia.
2) get a 1/8" solid steel rod (about 2" longer than the barrel you want to use it in). I use a clothes hangar straightened and sanded shiny.
3) some rubber O rings with the ID slightly smaller than the shaft you have. I use shrink wrap pieces.
4) rubber stoppers to act as a plug at the chamber, a wood dowell also works. I use chamber plugs with a shrink wrap tip on the rod to prevent grounding.
5) electrical aligator clips soldered to two lengths of small gague wire about 3 ft long each.
6) a 9V battery connected to the wires.
7) hook the positive to the frame of the firearm and the negative to the steel rod.

I put a plastic sheet turned to a funnel shaped device, taped around the muzzle to take care of the foam that will come up. Pour the barrel full of the liquid, insert the rod, making very sure that the rod does not contact the steel of the barrel, bottom or sides. Hook up the alligator clips and you will see foam come out of the muzzle in short order. After 5 minutes, remove the rod. Clean it with steel wool and reinsert the rod for another few minutes. Do not leave the bore full of amonia for a long period. You can repeat the process until the copper is gone. Empty the solution and change it out if you wish, also. When the bore is as you wish, patch it dry and oil it well.
Ed


PS: Remove the stock from the rifle, first.