Parker Hale Youngs “303” is known to be one of the very best combined cleaners, rust preventatives and nitro powder solvents.
My little lad is still to small to use a 12g so he has to use his lovely little 20g Over and Under out on the saltmarsh when he comes out wildfowling. To stop it rusting the only thing that works is a coat of Youngs “303” on the metal parts before he sets off onto the marsh.
