[B52U]

Seems like I've read a lot about how copper fouling can affect accuracy on target/sniper rifles. The interesting thing is most common cleaners don't have the ability to clean copper fouling (products like breakfree CLP for instance).

It gets even more complex when you read about break-in procedures on new barrels.

Is copper fouling really going to affect accuracy that much? And if so, what product is good for it's removal, and how often should copper removing bore solvent be used?

 

[Furyataurus]

I think Hoppe's has "copper" cleaning products. I use a 40 cal brush in my 9mm to remove crap from the barrel. IMO using a bigger brush that's softer than the barrel is the way to go.