butchlambert said:It is not the best for barrels.
clowdis said:I've got a New Hermes motorized version for doing caliber engraving and name. It seems to work pretty well but as Butch said it's kind of light duty. If you keep your engraving to a depth of .003-.005 in. and have someone who can grind a good D bit cutter for you, the machine will work a lot better. You'll need to put some jack screws on the front so you can raise it up to clear a barrel, but it's the only reasonably priced alternative out there. Look on E-bay for a machine but be sure it comes with fonts. Fonts are expensive.