Or after cleaning - I often use Simple Green followed by an alcohol patch, spray a little Sheath on a patch, run it down the bore and you are done.
Unless you seek a different method to deal with fowling like SL.
lately been using a new product - Gunzilla - that cleans and lubricates as well as smells good. 3 to 5 patches and the barrel is spotless and stays that way. www.topduckproducts.com
Not anti BB - just don't have the need with what I shoot.

Steve