As my business started picking up, I realized how much time it was taking me to clean gun barrels.
I have tried many products trying to find something that would save time while still being effective without being harmful to barrel steel.
About a year ago, I tried Wipe-Out Patch-Out for the first time, and I was amazed.
It was so effective at removing at removing copper that I was concerned that it might hurt barrel steel. To find out, I tested it out on several different barrel steels, and found no ill effects -not even etching.
I strongly recommend Wipe-Out Patch-Out for your cleaning needs.
There are many other excellent cleaning products available, but this is the one I use the most.