BushMaster-15
member
Yep I do , The frequency of which depends upon volume usage . I also polish with lube after final compound sequence .
Bore scope or LED small bulb and magnifying glass can reveal problem area ,such as perhaps some foreign debris once scratched the surface . A 600- 800- 1500- 2000 Si wet dry wrapped Rubber mandrel with drill spud in some cases eliminate that problem .IMO using either cutting oil or water ,some liquid is beneficial . I use paint thinner as it is oily enough . Final polishing a shotgun bore mop or modified felt wrapped mandrel ,impregnated with a polishing compound . I prefer 3M™ Finesse-it.
Prior to sanding or polishing cleaning and inspection is in order .
Solvent washing ,lacquer or acetone with nylon bottle brush and twisted preferably Non linting rag ,for cleanliness as well as inspection purposes .
Bore scope or LED small bulb and magnifying glass can reveal problem area ,such as perhaps some foreign debris once scratched the surface . A 600- 800- 1500- 2000 Si wet dry wrapped Rubber mandrel with drill spud in some cases eliminate that problem .IMO using either cutting oil or water ,some liquid is beneficial . I use paint thinner as it is oily enough . Final polishing a shotgun bore mop or modified felt wrapped mandrel ,impregnated with a polishing compound . I prefer 3M™ Finesse-it.
Prior to sanding or polishing cleaning and inspection is in order .
Solvent washing ,lacquer or acetone with nylon bottle brush and twisted preferably Non linting rag ,for cleanliness as well as inspection purposes .