Originally Posted by twodog max
I like the KG 12 and use it at times for moderate copper problems. For the really tough stuff I fall back to Sweets 7.62. Poison and stinks but it sure cuts copper fast.
Somewhere online (probably at KG's website) is a test of various copper solvents; a jacketed bullet was immersed in each solvent, and then weighed periodically. KG-12 was the ONLY
one that actually removed
any appreciable amount of copper from the bullet.
I also really like their carbon remover, KG-1. I used it on really significant carbon deposits, in the breech mechanisms of 60mm mortars! It works when nothing else will! ETA:
Here's the test of copper removers: https://www.coretacsolutions.com/pro..._KG12_TEST.htm