Yes. People are making all kinds of molded stuff like jewelry, fishing lures, figures, etc. I've even had a dentist want a machine for making teeth. A customer in Seattle area casts bronze RC boat propellers among other things.
An ABS part can be dipped briefly in acetone, which will smooth the surface even more. This is a great trick for preparing a part for a molding process or just improving the finish of a printed part.
I have multiple friends who want to test the printed magazine. While I made the first magazine with ABS, we stock a Nylon grade filament too. The Nylon will be plenty durable enough for long term use, but likely melt some if it gets too hot.