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Shawns 338 Edge Brass.

 
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  #1  
Old 11-16-2013, 02:08 AM
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Shawns 338 Edge Brass.

Any of you guys tried Shawns new 338 Edge brass for any other projects. I have it in my head, for some dang reason, to build a 7mm Ultra on the new brass. I would love to build a 7mm Allen mag, but don't have anything with that bolt face. My guess is that with the good brass this 7mm would nearly mirror Kirbys big 7. I already have a couple of 7mm Rem mags, 300 wby, and a 338 Edge. I just have an urge to do a super 7....just add another BBL to my A-5 platform

Is the standard 7mm REM Ultra Mag based on the 300 RUM or the 338 RUM case?
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  #2  
Old 11-16-2013, 12:39 PM
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Re: Shawns 338 Edge Brass.

300, 338 RUM and 7mm Rem Ultra are based by 404 Jeffery parent case.
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  #3  
Old 11-16-2013, 01:05 PM
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Re: Shawns 338 Edge Brass.

The 7 Ultra is the same case as the 300
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Old 11-16-2013, 05:00 PM
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Re: Shawns 338 Edge Brass.

Quote:
Originally Posted by 4xforfun View Post

Is the standard 7mm REM Ultra Mag based on the 300 RUM or the 338 RUM case?
The 7mm RUM , 300 RUM and the 375 RUM are basically the same. The 338 RUM is shorter.

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  #5  
Old 11-21-2013, 11:50 PM
SWN SWN is offline
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Re: Shawns 338 Edge Brass.

I would not get my hopes up on any 7MM UM nearly mirroring Kirby's Allen Mag.
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  #6  
Old 11-22-2013, 01:10 PM
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Re: Shawns 338 Edge Brass.

Quote:
Originally Posted by SWN View Post
I would not get my hopes up on any 7MM UM nearly mirroring Kirby's Allen Mag.

Why not? The case capacity is nearly identicle. The problem before was the poor remmy brass. If..and I say if ... one is able to load the new Burtram brass to the same PSI as the Lapua brass, why couldn't I expect comprable results?

The whole reason everything built off of the 338 Lapua case works so well is the fantastic brass!!
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  #7  
Old 11-22-2013, 02:12 PM
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Re: Shawns 338 Edge Brass.

I would think you could get within 100 fps (maybe closer) of the 7 AM with better brass then the Remington for the 7 RUM.
We have a 7 RUM with a 28"+ barrel shooting a 180 VLD just over 3200 fps using Rem brass and get 4 loadings before the primers start falling out.
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