I just did.
I was at Camp Perry for the Nationals, and they (Gunzilla) was giving away bottles of the stuff. While it says CLP, I am not going to take a chance on using it as an LP. It is untested in my book, for those two items.
As for a cleaner, it cuts carbon really well. As for copper, I don't know.
From their website:
Gunzilla™ can be used on everything from small handguns to 16” guns. Gunzilla™ is a one step cleaner designed to clean, lubricate, and protect, all in one formula.
Gunzilla™ removes rust, lead, copper, plastic, and carbon. It performs this quickly with a natural-base chemical which is faster, more effective, and safer than water based formulas or petroleum based solvents.
Gunzilla™ can be used on all smokeless and black powder guns, and eliminates the need to use soap and water when cleaning black powder guns. It also eliminates oiling after cleaning. You will find among its benefits:
• Low odor
• No Phenol
• No acids
• Non-Corrosive
• No ammonia
• Non-flamable
• Free of heavy metals
• Natural chemical base (from plants)
• No petroleum solvents
• No hazardous chemicals
• Soap and water cleanup
If it can do half of these things, it may the the cleaner to end all.
Also these people seem to like it.
http://forum.m1911.org/showthread.php?t=17489&page=1&pp=10