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Lengthening a mauser mag box
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Picture of ElCaballero
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I have been after my gunsmith to try this for a while. What are the steps? We are trying to get a 300 H&H length action. Our first thought was two triggerguards cut, welded and machined down into a single long one. Are we on the right track? I am not interested in buying one we are just looking for a challenge. I know that he is up to it in ability, we just need to know the best steps to take.


As a general rule, people are nuts!
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Posts: 2099 | Location: Missouri, USA | Registered: 02 March 2002Reply With Quote
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The spacing between the guard screws on a H&H length and normal M98 are the same. The magazine box itself is the only thing longer.


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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Picture of ElCaballero
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quote:
Originally posted by ramrod340:
The spacing between the guard screws on a H&H length and normal M98 are the same. The magazine box itself is the only thing longer.


I realize that, but how do go about getting it?


As a general rule, people are nuts!
spinksranch.com
 
Posts: 2099 | Location: Missouri, USA | Registered: 02 March 2002Reply With Quote
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Besides lengthening the box you need to widen it too.

Most simply cut the front and/or rear of the box off and weld on a new wall to the outside of the box.




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Posts: 4869 | Location: Lakewood, CO | Registered: 07 February 2002Reply With Quote
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Picture of tiggertate
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What action are you using? Most '98s are opened in the rear but if you have a Mark X, Whitworth or Chas Daly it is lengthened in front. If you can find a picture on the net of a MkX, it's easy to see how they bend a u-shaped extension and spot weld it to the front of the original box. Just reverse the idea if you open the rear.


"Experience" is the only class you take where the exam comes before the lesson.
 
Posts: 11143 | Location: Texas, USA | Registered: 22 September 2003Reply With Quote
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It's true that the CD's & Interarms are opened only to the front.

But, you cannot open soley to the rear. It has to be a combination of both front & rear. Go to the rear as much as possible then remove the remainder from the front. Don't forget you'll need bolt stop work.
 
Posts: 293 | Registered: 13 February 2004Reply With Quote
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If you can get your hands on a copy of the book Riflesmithing by Jack Mitchell, there is a chapter in there, with photos, that speaks to exactly what you are asking.
 
Posts: 7090 | Registered: 11 January 2005Reply With Quote
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How FN, MK X modified the 30-06 box to a long magnum.

Recut the rear of the box wall from .118" to .050" thick

Then recut the front of the box wall out to accept a .050" thick U shaped piece of stamped metal. This was spot welded in place to form the NEW LONGER front of the box for the H&H cases.

The WIDTH of the box is still a 30-06 which can cause some feeding problems depending on the cartidge used. Also only allows three cases in the box due to the narrower width.

Jim Wisner
Custom Metalsmith
 
Posts: 1497 | Location: Chehalis, Washington | Registered: 02 April 2003Reply With Quote
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