how many rounds before you should start worrying about copper fouling?

It depends on the smoothness of the barrel, and the bullet fired. I have rifles that need serious cleaning after shooting only a handful of Barnes bullets. My rifles with custom barrels do much better than the ones with factory tubes.

I prefer "shooter's Choice" and use it everytime I deep clean my guns (once a year if nothing else).

If I shoot a particular gun a lot, I deep clean it more often.

What methods do you guys use for "deep cleaning"?

Bore scrubber....follow the directions on the bottle and wipe out....

http://www.outdoorgearbarn.com/p-451...FQVgMgodSBcAdQ

Be SURE to use a bore guide.

More barrels are ruined by guys with a cleaning rod than any other reason.


This should help get you started in the "right" direction;

http://hunting.about.com/library/weekly/aa000729.htm

http://www.6mmbr.com/catalog/item/1433308/954882.htm

I have one rifle that will start showing copper fouling around the muzzle after five rounds. I use KG12, and it removes it very quickly.

CLeaning ? I just shoot more..self cleaning. Browning BAR, A=BOLT, and Deer SPecial SLug...........7-8-9 years old, and NEVER CLEANED them. Use Premium ammo.....Hornandy mostly.

To be sure it depends on your individual barrel. Some collect copper fouling faster than others. Normally an amonia based solvent is good for removing solvent. But I can't tolerate the smell. I've found recently that Hoppes has a product called Elite which is a lead and copper remover. It works really well and without the stong aroma of the amonia type solvents.