On 10/17/2011 3:05 PM, Joe AutoDrill wrote:
Does anyone out there actually have the tools and know-how to rifle the ID
of a barrel?

If someone truly wanted to build a home-made weapon, could the process of
making the ID of the barrel rifling be farmed out?

How would you do it?

Any old sod can build a smooth bore barrel IMHO. ...Well, any old
metalworking sod.

Regards,
Joe Agro, Jr.
(800) 871-5022 x113
01.908.542.0244
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V8013-R




The same places that make gun drills (a machine kinda-sorta like a
lathe, but not quite) also make and sell rifling machines (for cutting
rifling).

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There are about a half-dozen /common/ ways to produce rifling in a
barrel, but the easiest one to do at home is the oldest
method--cutting--which is done by dragging a single-edge cutter back and
forth through the bore, as it is rotated by a stationary screw. The
grooves are each cut separately so if you want six grooves and lands,
then you cut one groove, rotate the barrel 60 degrees, cut another
groove, and so on.

Other methods like broaching, hammer-forging ect require big & expensive
industrial equipment not usually practical for the home machinist to
own. Only gun manufacturers can typically afford that stuff.