I bought a big bottle of KG-12. I have been using it on my neighbor's guns that have really rough bores(303 British, 6.5 Swede, 8mm Mauser, several old ruger 77's and #1's). KG-12 needs to sit overnight, and it has done a really good job. It is non toxic and does not smell.
The jury is still out for me on KG-12, but I have got really good results on bores that are badly copper fouled.
Montana Extreme Copper Killer is my standard Copper solvent when I clean at the range in standard Factory bores and Custom rifles, it gets copper out in a hurry.
The jury is still out for me on KG-12, but I have got really good results on bores that are badly copper fouled.
Montana Extreme Copper Killer is my standard Copper solvent when I clean at the range in standard Factory bores and Custom rifles, it gets copper out in a hurry.