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Accuracy International stock on a 300 RUM

 
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  #8  
Old 06-25-2004, 09:07 AM
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Join Date: Jun 2004
Location: Pahrump Nevada
Posts: 54
Re: Accuracy International stock on a 300 RUM

I was afraid of that. I guess that is what makes this such a great sport...figuring how to make this kind of thing work. Thanks for the input Chris. I am going to talk to a fabricator today about making a new follower for the magazine or if altering the magazine body will be required.
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  #9  
Old 07-25-2009, 11:23 PM
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Join Date: Jul 2009
Posts: 6
Re: Accuracy International stock on a 300 RUM

How did you go I want to do the same with a rem 700 bdl ?
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  #10  
Old 08-06-2009, 05:14 AM
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Join Date: Jul 2009
Posts: 6
Re: Accuracy International stock on a 300 RUM

The problem with the Remington Ultramags in the AICS magazines is the length of the rim to the shoulder. The two deeply stamped strengthening ribs in the magazine body are placed too far back for the Ultramag brass to fit. The .300 Ultramag is 2.387" from rim to shoulder. The .338 Ultramag is 2.296" from rim to shoulder. The .338 Lapua is 2.161" and the .300 Win Mag is 2.196" from rim to shoulder. That's the reason why neither the Lapua or Win Mag AICS magazines will work with Ultramag brass without modification. One solution is to remove the strengthening ribs via grinding or machining. The magazines then have an open slot machined in them that exposes the cartridges,follower and spring to foreign material. People have done the modification,but they have to come up with some way to cover up the slots.


It has been done successfully with the use of the .338 Lapua magazine, the front ribs have to be machined out to allow for the RUM's extra shoulder requirements. This will allow the .300 and .338 RUMS's to function with x5rds very successfully. Of course, once this modification has been done, it will void any warranty/repair/replacement with AI on that particular magazine.
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  #11  
Old 03-30-2012, 05:54 PM
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Join Date: Mar 2012
Posts: 4
Re: Accuracy International stock on a 300 RUM

The .300 RUM will fit after modification, but, the magazine will become weaker right?

Bah I would love if Badger Ordnance, Remington, Accuracy International or any other High Quality company made those magazines from factory, studied and designed to avoid those modifications..
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  #12  
Old 03-30-2012, 11:36 PM
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Join Date: Dec 2007
Location: New Mexico
Posts: 65
Re: Accuracy International stock on a 300 RUM

I shoot a 338 ultra mag out of my AI stock with no problems at all,feeds smooth and quick.Mag was adjusted by a AI dealer and has worked great.
I'm using the lapua magazine,cost was 40.00 for the adjustment mags came
back looking clean and new.
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  #13  
Old 03-31-2012, 11:58 PM
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Join Date: Nov 2010
Posts: 208
Re: Accuracy International stock on a 300 RUM

what benefit are you seeing by using an AI stock?? they are heavy and over priced. I don't see the point even for a tactical rifle.
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  #14  
Old 04-01-2012, 10:41 PM
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Join Date: Dec 2007
Location: New Mexico
Posts: 65
Re: Accuracy International stock on a 300 RUM

Chris Mathews you are incorrect on your evaluation on the ultra mag, Cummins Cowboy who said any thing about a lite tactical rifle,if you can't afford a AI stock don't buy one.
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