Thread: ammonia

Definitely don't leave ammonia based Cu solvents in your barrel longer than say 10-15 minutes. I have seen borescope images of barrels ruined by ammonia based cleaners - lots of little craters, very moon like.

I threw my Sweets away years ago. There are far better non ammonia based Cu cleaners available these days eg Boretech Cu+ or to a lesser extent their Eliminator, also KG12. Although these I believe, (as do others) that despite makers' claims shouldn't be left in barrels for storage.

Still love the smell of Hoppes 9. A dab behind your ears is probably it's best use. Bought a bottle of their more expensive Cu cleaner years ago. Thought the regular No 9 about as effective. They will remove Cu but both very slow.

Some of the bore foams (not all brands) are effective cleaners.