Re: Copper Fouling Solvent
I'm for the 50bmg copper killer also, but I feel you must nuetralize it when done. I use Kroil for this, 5-10 minutes i think is enough.
50 bmg is not a good carbon solvent though. If by some chance I use a brush, it is nylon, and never pulling it back through, just unscrew it.
If your buildup is so bad, Darrel Holland's witches brew is some good shit, but very abrasive, it will clean your barrel.