Cleaning F-Class barrels

[savagedasher]

Larry, what solvent do you use?

Hoppe's 9. I leave it wet over night also .
Brush will tell if you need to clean more .
Larry

 

[boltman13]

I don't claim to be a cleaning expert. The article I am attaching did convince me to buy a borescope. So I can monitor my practices. I found the pictures in the article to be a very good guide.

My practices:

1. As soon as I return from a range session, I use Butches Bore shine. Let it set 15 to 30 minutes and repeat until I am seeing very little blue from the copper. This seems to remove the carbon pretty well.
2. Then I switch to Bore Tech Cu+2 copper remover. This seems to be a fairly safe copper remover and it works really well. I apply to the bore and let it set 30 minutes or so. I repeat until no blue is coming out. For a used rifle with a manufacturers standard barrel, this has taken a week to remove all the copper. I will let it set longer (overnight) as this process continues.

I can monitor the process with the borescope. Once I get a barrel clean, if you clean shortly after shooting, it cleans much easier. The premium barrels will collect almost no copper after they have a couple of hundred rounds through them.

Even when PD hunting, I clean the bore every 50 shots. In the field I just use Butches. But every night I remove the copper with Bore Tech. I found that if I don't, after 700+ rounds, I will get an occasional flyer.

I also use Butches as you do but use MontanaXtreme Copper Killer instead of Bore Tech for about 15 minutes. Also a quick patch or 2 of Butches as soon as you are done shooting and the barrel is still warm really helps with cleaning.