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6mm Rem.to .260 Rem.?
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GAHUNTER
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posted
I've recently rebarreled a Rem. Model 600, .243 Win. to .358 Win. This was a very simple conversion as the two rounds share the same parent. There was no bolt-face work; no magazine problems and no feed-rail alteration.

Now my buddy wants to do something similar with his Model 600, but he wants to convert from 6mm Rem. to .260 Rem. -- two dissimilar cases. I know nothing about the 6mm Rem., other than it is, ballistically, similar to the .243.

Will he run into any feeding or bolt-face problems?
 
Posts: 1443 | Registered: 09 February 2004Reply With Quote
igorrock
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.260 Rem parent case is .308 Win and 6mm Rem parent case is 7x57 Mauser. So comparing parent cases you could notice the difference.


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Posts: 410 | Location: Finland | Registered: 31 March 2007Reply With Quote
SR4759
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quote:
Originally posted by GAHUNTER:
I've recently rebarreled a Rem. Model 600, .243 Win. to .358 Win. This was a very simple conversion as the two rounds share the same parent. There was no bolt-face work; no magazine problems and no feed-rail alteration.

Now my buddy wants to do something similar with his Model 600, but he wants to convert from 6mm Rem. to .260 Rem. -- two dissimilar cases. I know nothing about the 6mm Rem., other than it is, ballistically, similar to the .243.

Will he run into any feeding or bolt-face problems?


No
Have him check the 600 Rem parts price list.
Check to see that the 6mm and the .243/.308 use the same magazine box. If they don't he just needs to buy the .308 magazine box.
 
Posts: 13978 | Location: http://www.tarawaontheweb.org/tarawa2.jpg | Registered: 03 December 2008Reply With Quote
Texas Killartist
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The 6mm Rem is the 7 x 57 case necked down.
The 260 Rem is the 308 Win case necked down.
The 6mm Rem case is longer than the 260.
Bolt face is the same.
A rebarrel should be easy .
 
Posts: 1991 | Location: Sinton, TX | Registered: 16 June 2013Reply With Quote
Alberta Canuck
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quote:
Originally posted by Texas Killartist:
The 6mm Rem is the 7 x 57 case necked down.
The 260 Rem is the 308 Win case necked down.
The 6mm Rem case is longer than the 260.
Bolt face is the same.
A rebarrel should be easy .


I think that would be a very good use for any unloved 6 m/m Remington. He could do it even cheaper by buying a new "take-off" Remington .260 barrel and then getting a standard Remington .308 magazine box.

Also is an excellent conversion for a Remington 722 action if a person has one.


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Posts: 9685 | Location: Cave Creek 85331, USA | Registered: 17 August 2001Reply With Quote
SmallCal
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Can't say for sure that there will be problems, but if you have any .243 cases sitting around from your original rifle, I'd put a couple (empty or inert) in the magazine of his rifle and see if it will feed them. Could give a pretty good indication of what you are up against.


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Posts: 714 | Location: Sorexcuse, NY | Registered: 14 February 2002Reply With Quote
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