The Firing Line Forums - View Single Post - Dusting off a old 6.5 swede sportster, advice wanted.

**44 AMP** · January 6, 2014, 10:39 PM

Scrubbing only goes so far. What you need is to soak the bore with a copper solvent, let it work for a while, then scrub, then patch until clean. Repeat the process a couple times a week until you see the results you want.

I don't know if you can still get it, I haven't found any in a long time, but the best product I know of is RB-17

I don't know what's in it, but it doesn't smell bad, is non toxic, and it takes out everything!

Hoppes is good, but get a copper solvent (one that specifically claims to remove copper deposits), and use it.

Copper fouling is better than lead in the bore, copper actually smooths rough spots, and can actually improve accuracy, but there comes a point when this stops and the fouling reduces accuracy.

January 6, 2014, 10:39 PM	#42
44 AMP Staff Join Date: March 11, 2006 Location: Upper US Posts: 28,833	Scrubbing only goes so far. What you need is to soak the bore with a copper solvent, let it work for a while, then scrub, then patch until clean. Repeat the process a couple times a week until you see the results you want. I don't know if you can still get it, I haven't found any in a long time, but the best product I know of is RB-17 I don't know what's in it, but it doesn't smell bad, is non toxic, and it takes out everything! Hoppes is good, but get a copper solvent (one that specifically claims to remove copper deposits), and use it. Copper fouling is better than lead in the bore, copper actually smooths rough spots, and can actually improve accuracy, but there comes a point when this stops and the fouling reduces accuracy. __________________ All else being equal (and it almost never is) bigger bullets tend to work better.