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7mm rechamber

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Unread 12-23-2010, 12:04 PM
Junior Member
Join Date: Oct 2009
Posts: 13
7mm rechamber

What are my options if I rechamber a 7mm rem mag?
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Unread 12-23-2010, 12:18 PM
Gold Member
Join Date: Mar 2002
Location: mi
Posts: 991
Re: 7mm rechamber

Are you looking to rechamber the barrel on your rifle or put a custom barrel on your rifle?
If you think something is not possible move out of the way so the ones that are doing it can
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Unread 12-23-2010, 12:20 PM
Join Date: Mar 2010
Location: on the Southern Plains
Posts: 1,920
Re: 7mm rechamber

Options depend on mag length, too.
"Shoots real good!": definition; it didn't blow-up in my face. 1993 graduate Montgomery Community College 2yr. gunsmithing program
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Unread 12-23-2010, 12:22 PM
Junior Member
Join Date: Oct 2009
Posts: 13
Re: 7mm rechamber

I already have a 7mm rem mag and was given another one. I am just wondering what I can turn the second one into.
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Unread 12-23-2010, 02:25 PM
Silver Member
Join Date: Jul 2009
Location: OZ
Posts: 362
Re: 7mm rechamber

You can go for anything bigger than a rem mag like stw or rum or you could have it cut and chambered for a wsm.
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Unread 12-23-2010, 05:38 PM
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Join Date: Jun 2006
Location: Shangri-La
Posts: 957
Re: 7mm rechamber

Like shortgrass said options will depend upon magazine length but I have REBARRELED several win mags and they are essentially the same. The bolt face is .532" and without bolt work you can rebarrel to:

6.5 rem mag - my favorite and have done 2 from 300 win mags, there is lots of room to have it reamed so you can seat those long 6.5 bullets way out and get out of the bullet taking up case capacity

264 win mag
300 win mag (mag length may be critical since the 300 win mag case is longer than the other win mags)
338 win mag

338 RUM - I rebarreled a 338 win mag into one but I had a long magazine. The case head is only a couple of thousandths larger and I needed no bolt face work or rail work

375 Ruger - this caliber is designed to fit in a 3.4" action and has more case capacity than a 375 H&H. I rebarreled a 264 win mag into one without a hitch

458 win mag?

There are probably more.

What kind of gun and how long is the magazine
If you can read this, thank a teacher.......if you are reading this in English, thank a soldier.
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Unread 12-24-2010, 12:11 AM
Gold Member
Join Date: Sep 2009
Location: Washington
Posts: 777
Re: 7mm rechamber

This link should help
Bolt face diameter's
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