I was told that fireing a couple of Nickal coated projectiles will clean 90% of copper fouling.
My question is how do you remove nickal fouling ?.

While I'm at it what do you think of useing nickal plated bullets to break in a new barrel ?.

I don't know about nickle plated bullets but I do know that the old silver colored cupronickle jackets have a reputation for much worse metal fouling of the bore than gilding metal.

Jerry Liles