I have a scoped mk85 with quick detach mounts.to clean t7 from my gun I use dawn and hot water first starting with a couple of wet patches,then a bronze brush for 3-5 good strokes. Then I switch back to straight soapy water patches till they come out clean.Use breech plug brush to hit my threads in the barrel.Then I run patches till dry.I'm a firm believer in birchwood casey sheath;my gun will rust like a some of a gun without it .