I have used this product for several years to polish rifle and pistol bores after using cast bullets. Does an excellent job of lead and carbon removal. Also polishes up the bore to a brilliant shine and makes viewing with a bore scope an easy task. As warning indicates, do not use on blued or case colored metal surfaces...will remove bluing and case color.
Pros: Easy to use
Cons: None
This review was written in the old system and had content requirements that are different than reviews written today.