Any one using any military bore cleaner on a regular basis.
I have some that was made in 1975 but havnt tried it yet. thanks

I bought a case of it about 35 years ago from a place called Barnacle Warf. Ran out about 2 years ago. It worked fine.

Yes if you mean RBC, or Cleaner, Rifle Bore (it is marked both ways) it never goes bad and any made in 1975 is like new to me. It will dissolve corrosive priming residue, as will plain water.