Hot chow and a warm dry bunk... Not if you joined the Canadiannavy and served on a corvette doing convoy runs in the North Atlantic. Often too rough for the cook to prepare real meals, and the mess decks were awash. "Red lead" was common - canned stewed tomatoes. A hammock, not a berth.
The important point of that conversion is that the hammer is positively dropped with the breech closed. With filed hooks, etc., there is the risk of an out of battery discharge.