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New build - 7SAUM

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Old 04-22-2014, 09:13 PM
Junior Member
Join Date: Dec 2008
Location: Houston
Posts: 8
New build - 7SAUM

The specs.

Benchmark 30" 5r 8 twist 7mm tube light varmint. Chambered in 7 SAUM. (From the benchmark group buy - I can't wait to shoot this beauty)
Stiller Predator s/a
Stiller DBM
Alpha Mags
Jewell trigger
McMillan A-3/5 , 2 flush cups
Kahle 6x24 56 MSR
Nightforce 6screw rings

Built by Omar Alonzo in the Houston area - builds a lot of 6.5 SAUM hammers.

I cannot wait to get some time to shoot it. I will break it in with 180 VLDs over a healthy dose of Retumbo and if I can ever find some H1000 will compare that to the Retumbo. Yes that is an 8 twist cited above as I have heard about some 195 VLDs in the future and I would rather have a little more than not enough.

This whole project started from me thinking about rebarreling a Rem 7-08 sporter that needs a need tube to be fun. But one thing leads to another and you need a new stock, why bother truing an action, that trigger needs work, etc.............
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New build - 7SAUM-img_0881.jpg   New build - 7SAUM-img_0882.jpg  

New build - 7SAUM-img_0885.jpg  
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Old 04-23-2014, 09:12 AM
Gold Member
Join Date: Oct 2012
Location: Colorado
Posts: 615
Re: New build - 7SAUM

Great looking rifle!
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Old 04-23-2014, 09:33 AM
Junior Member
Join Date: Apr 2014
Location: Montana
Posts: 4
Re: New build - 7SAUM

Great looking rifle. How did you get the magazines set up to feed the SAUM? I have a 7WSM also on a Stiller Predator. I am using Wyatt's DBM with 308 magazines with the lips bent out. I have it feeding pretty reliably but I get the occasional failure to feed. Any advice you can give me?
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Old 04-23-2014, 10:20 AM
Junior Member
Join Date: Dec 2008
Location: Houston
Posts: 8
Re: New build - 7SAUM

I am using 300 WSM mags from alpha industries. I have the 10 round version. In testing with the dummy rounds they have fed fine. I will know more when I get out to the range.

.300WSM Magazines
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Old 04-23-2014, 05:48 PM
Bronze Member
Join Date: Apr 2013
Location: south of London, UK
Posts: 76
Re: New build - 7SAUM

Very nice rig.
I have a very similar saum on a Borden action but same scope and stock.
Keep posting your load test results, I'm interested to hear how you do.
I use H1000 but struggle to keep consistent coal over 65gr with bergers even at 2.970
So guess that you will single feed the 195grn's
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Old 04-24-2014, 05:10 AM
Gold Member
Join Date: Mar 2012
Location: Wolfesville, MD
Posts: 813
Re: New build - 7SAUM

Gotta love the 7 SAUM, I have one very similar, Stiller action, Rem Varmint contour 25" Rock Creek w/ brake, in a A3 Edge Sporter McMillan, has a 4.5x14x50 Mark 4 on it. I load at 2.9" OAL from a BDL Mag with 58 grains H4831 under the 180 Bergers. I do have some 190 Matrix but saving them for a larger cartridge.
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Old 04-24-2014, 04:47 PM
Silver Member
Join Date: Sep 2010
Posts: 100
Re: New build - 7SAUM

Sweet rifle, I have a 7mm SAUM being built as well, #5 brux fluted. Will be my primary hunting rifle. Snowy Mountain rifle.
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