I wouldn't use WD $0 on anything where I couldn't flush it away/ Getting it into a rifle bolt would be a good place to avoid using it.
My enquiry into the the composition of steel which will allow the metal to become saturated with WD 40 and block any water molecules to seep in there or BP residue for that mater is what got me using my method
Last time I checked my barrels before giving my rifles to my grandson they were clean as a whistle with no rust or corrosion after quite a few years in Humid St/ Louis.
Dutch
Dutch
My enquiry into the the composition of steel which will allow the metal to become saturated with WD 40 and block any water molecules to seep in there or BP residue for that mater is what got me using my method
Last time I checked my barrels before giving my rifles to my grandson they were clean as a whistle with no rust or corrosion after quite a few years in Humid St/ Louis.
Dutch
Dutch