12-02-2016, 02:45 AM
I just cleaned my Shilen barrel yesterday with Shooters Choice copper remover. My Shilen 6.5 G barrel showed no indication of copper on the patches. This barrel has shot Nosler 123 grain CC with CFE 223 powder almost exclusively. I haven't shot as much CFE 223 powder in my 16" 6.5 Grendel but it showed just a small amount of copper discolration on the wet SC patches.