For long term storage there are modern made equivalences of Cosmoline such as Rust Veto 342, as well as an entire family of rust prevention products under patent of Houghton International.
FOr regular storage in the safes I take them out twice a year apply a oily bore swab and wipe down with a heavier oil.
FOr regular storage in the safes I take them out twice a year apply a oily bore swab and wipe down with a heavier oil.