I've read a counseil to use it, as its vapors should inhibits rust. I use it (lighted with a flame) for smoking the sights before a match, but I 've never used it as an anticorrosive. Someone has tried? Thanks, MAXM
My father, a talented tool and die maker, kept camphor blocks in every drawer of his tool chests. It does a wonderful job of blocking rust and corrosion on steel, but know that it is insidious, and gets into every tiny crack and crevise(the molecules that leave the block. It will 'go away' over time). Also know that it will "kill" some rubber compounds, and make brittle some plastics. If you have plastic parts, rubber grips, shok-buffs, rubber seals etc. that you are concerned about, camphor might not be the best product to use.
I speak from woefull experience!