Re: [CAD_CAM_EDM_DRO] Re: Stainless tubing/gun drill

That method of barrel straightening is bound to put any gun owner on edge.
Good reason for gunsmiths not to allow the customer to watch them work.
After all, they don't want to give away "trade secrets". :-).

Uh...no, I don't need any bent barrels for demos....besides, I be afraid
you'd probably send me one with a 90 degree kink in it just for kicks. I'd
have to charge like hell for a demo on that.

Smoke

----- Original Message -----
From: "dave_ace_me" <davemucha@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, January 08, 2002 2:51 PM
Subject: [CAD_CAM_EDM_DRO] Re: Stainless tubing/gun drill


> Hi Smoke,
>
> I can't stop laughing at your method of straightening a barrel.
> You are correct, and it can be done, but my nerves would be on edge
> if it were my gun.
>
> However, if you're in need of a demonstration, I'll be happy to put
> the bend in the barrel ! LOL. (got a barrle to use ?)
>
> Dave
>
>
> --- In CAD_CAM_EDM_DRO@y..., "Smoke" <smoke@t...> wrote:
> > I presume you are a gunsmith too? If you have a good eye, you CAN
> simply
> > look down the bore and SEE if the barrel is straight or not. All
> you have
> > to do is look at the grooves. If they aren't concentric with the
> entry and
> > exit holes, the barrel in bent.
> >
> > At any rate, I might like to point out (as we learned in
> school)...what
> > difference does a minor amount of non-straightness cause? None!
> Why?
> > Well, all things being equal with each shot(angle of elevation,
> point of
> > aim, etc.), as far as the bullets coming out of the barrel are
> concerned,
> > the bullets will have the same point of impact because the
> direction of the
> > bullet leaving the bore will not change from shot to shot.
> >
> > BTW...a tip most gunsmiths won't tell you is bent barrels can be
> > straightened...sometimes just by whacking the barrel on the edge of
> a table.
> > I even saw this demonstrated.
> >
> > If you really want those bores straight, devise a means of putting
> the
> > barrel liner in tension as was done on the Take down revolvers with
> > interchangeable barrels. This idea existed long before it
> was "invented"
> > (put on the market).
> >
> > Smoke
> >
> > > Hi,
> >
> > > Does anyone know how to inspect/measure the straightness of a bore
> > > such as a barrel?
> > > I dont want to make guns, but i do make precision carbon fibre
> tubes
> > > on the inside of honed steel tubes.
> > > After a lot of expensive trial and error I can mould smaller sizes
> > > straight to 1 in 20,000 (e.g. at 47.6mm dia. i get max 0.1mm bow
> over
> > > 2metres).
> > > On larger sizes, say 130 mm x 3500 mm long I cant afford the trial
> > > and error.
> > > someone once told me of an optical technique (you can tell by
> looking
> > > at them, he said), any thoughts.
> > > regards
> > > Steve
> > >
> > >
>
>
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