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Conversion of a Whitworth 375 H & H to404 Jeffery

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https://forums.accuratereloading.com/eve/forums/a/tpc/f/9411043/m/754100096

21 June 2007, 23:16
whm7753
Conversion of a Whitworth 375 H & H to404 Jeffery
Can a Whitworth 375 H & H be converted to a 404 Jeffery safely, comfortably and without too much ado?

Thanks,

Bill
21 June 2007, 23:49
vapodog
While I've never done it.....I sure would think it's not at all a difficult conversion and a safe one as well.


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22 June 2007, 00:04
jeffeosso
can it be done?
yes
will it require feeding work
yes
would you be better off selling the whitworth and buying a CZ in 404?
YES
jeffe


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
22 June 2007, 00:23
Ratltrap
Opinions vary......
https://forums.accuratereloading.com/eve/forums/a/tpc/f/...?r=79010194#79010194
22 June 2007, 01:22
jeffeosso
quote:



Sure do, and jack points out what I am refering to.. that feeding can be a b####
quote:
Originally posted by JBelk:
Any action you're likely to find will have to have special bottom metal to reliably feed the 404.



opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
22 June 2007, 01:51
HunterJim
I was going to say you will need bottom metal, but some folks beat me to it!

jim


if you're too busy to hunt,you're too busy.
22 June 2007, 04:02
Ratltrap
I once considered building a RUM on a Mark X action, but after looking into it and corresponding with a few folks here I decided a brand new CZ Rigby or 404 and scope could be had for about the same price.

Now I'm thinkin' 375 Ruger or a 416 spinoff for my Win Mag configured Mark X action. There may be some feeding issues there too, but nothing compared to the 404 length cartridges.
22 June 2007, 05:57
ramrod340
quote:
Now I'm thinkin' 375 Ruger or a 416 spinoff for my Win Mag configured Mark X action

I've never had any trouble with the MKX in 06 or magnum feeding. I'd bet it would work as is on the 375 case and be even better with a little work.

I've got a 7mag waiting for an AR conversion.


As usual just my $.02
Paul K
22 June 2007, 06:24
lee440
The factory bottom metal will should work. I've used it for 458 lott with no problems.


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