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Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing

Bramble
.375 member

Reged: 29/07/06
Posts: 950
Loc: England

Re: New DR project
12/07/07 08:05 AM

Dear 3Sixbits

What he said was. He was intending to order the barrels finished from Lother Walther.
I can/did only comment on my dealings with them, they would I believe be unwilling to produce 2 only short chambered barrels threaded, for a private customer. I get my barrels from the states for this reason.

Of course the lathe is running backgeared for the low speed, however this reduction in gearing also increases the torque of the machine. That is when you can sense the cut pressure.
All my reamers are live pilot and they are held in a floating reamer holder, with high pressure through the barrel lubrication/cooling.
My comment about oval chambers is because in order to produce the required downward pressure for the reamer to cut whilst rotating it, there is a tendency for a person to lean on the reamer holder handle nearest them.
If taking 10 thou out of a short chambered barrel it is not a problem.In fact common practice.
With respect you were not suggesting that, you suggested that he got an unchambered blank.
That is a hell of a lot of material to remove without scoring or ovaling the chamber.

You are obviously a very experienced machinist, perhaps you can do the whole procedure in a vise. Not one in a hundered would attempt it. I assumed from the tone of the origional post that this gentleman is not widely experienced. Even too tight a vise can distort the chamber. Many benchrest gunsmits will only chamber in steady rests rather than through the headstock because of jaw pressure on the chamber area.

I have never cut a rifle chamber on a mill so I defer to your experience.

Thats a good way to do revolver cylinders. I don't have a milling machine. I cut the bolt stops/cuts on a dividing head on the lathe with a modified woodruf cutter and then line bore the cylinder by hand using hardened bushes in place of the barrel. As you said more than one way to skin a cat.

Regards

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Entire topic
Subject	Posted by	Posted on
New DR project	Nagell	10/07/07 09:54 PM
Re: New DR project	doubleriflejack	29/11/07 04:12 AM
Re: New DR project	Dogdigger	02/12/07 03:20 AM
Re: New DR project	xausa	12/07/07 02:04 AM
Re: New DR project	Bramble	12/07/07 08:05 AM
Re: New DR project	3sixbits	12/07/07 09:44 AM
Re: New DR project	Bramble	13/07/07 08:40 AM
Re: New DR project	3sixbits	13/07/07 03:02 PM
Re: New DR project	Bramble	15/07/07 03:32 AM
Re: New DR project	Nagell	15/07/07 03:34 AM
Re: New DR project	xausa	16/07/07 01:44 AM
Re: New DR project	Nagell	16/07/07 06:24 AM
Re: New DR project	Bramble	16/07/07 07:58 AM
Re: New DR project	Dogdigger	16/07/07 08:32 AM
Re: New DR project	Bramble	16/07/07 09:05 AM
Re: New DR project	Nagell	22/07/07 04:31 AM
Re: New DR project	Bramble	22/07/07 07:31 AM
Re: New DR project	Dogdigger	02/08/07 04:27 AM
Re: New DR project	Nagell	02/08/07 04:26 PM
Re: New DR project	Bramble	03/08/07 07:23 AM
Re: New DR project	Bramble	22/07/07 07:19 AM
Re: New DR project	3sixbits	16/07/07 02:06 PM
Re: New DR project	Dogdigger	16/07/07 02:19 PM
Re: New DR project	Bramble	17/07/07 04:45 AM
Re: New DR project	3sixbits	17/07/07 02:48 PM
Re: New DR project	Bramble	15/07/07 07:52 AM
Re: New DR project	400NitroExpress	20/07/07 09:14 AM
Re: New DR project	bonanza	15/07/07 11:49 AM
Re: New DR project	450_366	15/07/07 07:21 AM
Re: New DR project	3sixbits	11/07/07 07:19 AM
Re: New DR project	doubleriflejack	17/11/07 05:05 AM
Re: New DR project	CptCurl	19/11/07 10:26 PM
Re: New DR project	Bramble	11/07/07 11:28 AM
Re: New DR project	3sixbits	11/07/07 01:54 PM

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