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Poll: What 7mm is best for me?
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What 7mm is best for me?

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7mm/300 wsm or 7mm SAUM?

 
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  #1  
Old 04-28-2010, 05:30 PM
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Join Date: Sep 2009
Location: Washington
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7mm/300 wsm or 7mm SAUM?

I am having my 300 wsm tikka t3 rebarreled and am undecided between the 7mm/300 wsm and the 7mm SAUM. I think both have strenghts and weakness. I will be hunting in the mountains of eastern washington for mule deer and shots can be long est 700+, though I'm not ready for shots that long yet. SO primary use of gun will be mule deer eastern wa. secondly will be black bear hunting in western wa, shots typically much closer as the forests are heavy, and third occasional elk hunt eastern wa, typically bow hunt for elk though. I'm looking to change rounds because I would prefer less recoil so I can enjoy practicing shooting more and improve the ballistics of the 7mm.

reasons for the 7mm saum. It comes within 100 fps of the 7mm/300 wsm but with 8-10% less power. If anything should happen to pet load while on trip although hard to find factory ammo available. With the 8-10% less powder also comes less recoil.

reasons for the 7/300 wsm able to push the bullet alittle faster but at the cost of more reciol.

The reason for no factory 7 wsm is because case forming would be more difficult when trying to use high quality brass from norma or nosler (would require fire forming), also the neck is shorter than the 7/300 wsm.

This will on a long action so I can seat the bullet out farther than if it were limited to a short action. Thanks for any input.

Last edited by pyroducksx3; 04-28-2010 at 06:55 PM. Reason: update info/ spelling
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  #2  
Old 04-28-2010, 09:23 PM
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Re: 7mm/300 wsm or 7mm SAUM?

I vote for the 7wsm. It has the most fps.

You'll not likely see the difference the neck length makes in a hunting rifle.

With a decent sized barrel you probably won't tell the difference in recoil either. Mine is a 28" varmint taper and it kicks like a pussycat.

Forming Norma brass is easy too. Using 300wsm all you have to do is neck down leaving a false shoulder and shoot. I've gotten great accuracy in my fireform loads.
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  #3  
Old 04-28-2010, 09:59 PM
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Re: 7mm/300 wsm or 7mm SAUM?

+1 on the 7wsm brass is no big deal shoots great.
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  #4  
Old 04-28-2010, 10:27 PM
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Re: 7mm/300 wsm or 7mm SAUM?

If you're used to shooting the 300 wsm in a T3 then the 7wsm will be a relief for you. while rebarreling get a real nice decelerator pad, that makes a big difference. I'm currently getting ready to fireform the norma 300 wsm brass, just sorted 100 pieces into 2 boxes of 45 within 1 grain, plus about 5 foulers per box. Still debating whether to shoot bullets or cream of wheat. I figure the cream of wheat is no big loss; I can always fireform again with bullets, but I need to find some fast powder locally.

You mentioned having your T-3 rebarreled from 300 wsm, but then you said you're using a long action to seat bullets out longer. My experience has been the magazine on the T3 limits seating depth on the wsm cartridge. Whats the secret here?
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  #5  
Old 04-29-2010, 05:11 AM
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Re: 7mm/300 wsm or 7mm SAUM?

There is some good reading on the 7's on 6mm Br website. Might want to check it out.
I would go with the 7 RSAUM. Basically, identical to the 7 WSM with a long neck and slightly less powder. Good brass to with Norma 300 SAUM necked down, or just use Remington.
Can't go wrong with either choice thou.
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  #6  
Old 04-29-2010, 05:37 PM
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Re: 7mm/300 wsm or 7mm SAUM?

Loaders loft I havent put in practice yet but I dont see why it wont work. The T-3 is a long action no matter what caliber. So that magazine for it in the short actions just has more plastic on the back of it. You should be able to grind that plastic down to allow a longer cartridge length in your short action calibers.
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  #7  
Old 05-02-2010, 07:33 PM
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Re: 7mm/300 wsm or 7mm SAUM?

Quote:
Originally Posted by trueblue View Post
There is some good reading on the 7's on 6mm Br website. Might want to check it out.
I would go with the 7 RSAUM. Basically, identical to the 7 WSM with a long neck and slightly less powder. Good brass to with Norma 300 SAUM necked down, or just use Remington.
Can't go wrong with either choice thou.
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