Six months in six fathoms of salt water, retrieved 870 today and within 15 minutes placed barrel and action in barrel of fresh water until get time to strip per NRA Guide to Firearms Assembly. Rust wiped off barrel and exterior action. The other 870 and my Fox SW await recovery.
The 870's padded cloth case apparently allowed tidal drift from capsize. Had to abandon dive because of tide and cold. Any suggestions for cleanup? After a salt-water capsize 25 years ago, I soaked an AYA 20 ga double in a cylinder of methyl hydrate for a week and did not disassemble; no problems. It was under one day.