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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

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.333 member

Reged: 18/09/10
Posts: 290
Loc: East Coast, USA
.404 Chamber Reamer dimensions?
      #308104 - 22/11/17 09:23 AM

A friend spoke to PTG about a .404 NE reamer and they said there are 2 versions. Version 1 is the CIP standard reamer. Version 2 is another reamer that cuts a very slightly tighter chamber with a different throat angle and pitch. I do not have the drawings with me, but the CIP seemed to cut a slightly sloppy chamber and version #2 cut one closer to the case dimensions listed in Cartridges of the World. PTG says version #2 is popular right now. Which one should my friend order and why?

Thanks in advance.


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.577 member

Reged: 10/08/05
Posts: 18268
Loc: Beautiful British Columbia, Ca...
Re: .404 Chamber Reamer dimensions? [Re: CommandCar]
      #308107 - 22/11/17 10:14 AM

I would use #2 if it is closer, but still slightly larger than the chamber.

CIP specs tend to be quite oversize in head and sometimes neck dimensions, making for over-sizing/over-working the brass. With expensive brass, you normally do not want that.

What is nice when ordering a wildcat reamer, is getting what you want, measurement wise.

I have always had good luck with Dave Kiff, of Pacific Tool and Gauge. That said, I know nothing of the .404NE, except that I've wanted one since I was 15yrs. old.


"a rifle without hammers, is like a Spaniel without ears" Edward VII

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Reged: 29/12/08
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Re: .404 Chamber Reamer dimensions? [Re: Daryl_S]
      #308466 - 29/11/17 06:58 AM

Drawing of my reamer. I bought it from Pacific Tool and Gauge around 15 years ago.

Edited by Altamaha (29/11/17 07:01 AM)

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.224 member

Reged: 03/11/07
Posts: 5
Loc: BC, Canada
Re: .404 Chamber Reamer dimensions? [Re: Altamaha]
      #309006 - 15/12/17 12:23 PM


Do you know of any gunsmiths in western Canada that have a 404 Jeffery reamers?
I know Bob Galloway in Alberta will chanbmber for this cartridge, he did a 404 that I have.


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