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7mm WSM brass

 
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  #1  
Old 01-01-2010, 12:16 AM
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7mm WSM brass

Does anyone have an opinion on whether you can resize 270 wsm and 300 wsm brass to 7mm wsm brass? I know there is a different headspace for the 7mm than that of the 270 and 300.
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  #2  
Old 01-01-2010, 01:17 AM
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Re: 7mm WSM brass

If you are resizing 270/300 WSM brass because you cant find 7 WSM brass and are going to fire them in a standard 7 WSM chamber then use the 300 WSM brass and only size the neck down to where you have a snug fit when closing the bolt, leaving part of the 30 cal neck as a false shoulder.
Dave
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  #3  
Old 01-02-2010, 10:12 PM
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Re: 7mm WSM brass

I use the 270 brass. I'll neck up to 30 cal. Then size to 7mm leaving the false shoulder.

I use the 270 brass because my chamber neck is on the small side and I don't want to turn thick necks.

I'm also using Norma brass. I don't think it would be worth the trouble for factory brass.
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  #4  
Old 01-03-2010, 01:20 AM
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Re: 7mm WSM brass

[QUOTE=geargrinder;344824

I'm also using Norma brass. I don't think it would be worth the trouble for factory brass.[/QUOTE]


+1 on Norma brass.
I'm very happy with the quality of 270 WSM Norma Brass.



JM .02
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  #5  
Old 01-04-2010, 06:35 PM
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Re: 7mm WSM brass

Powder Valley has Winchester 7WSM brass in stock.
Dave
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  #6  
Old 01-07-2010, 10:47 AM
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Re: 7mm WSM brass

Why not just buy some 7WSM brass?

Winchester Brass 7mm Winchester Short Magnum (WSM) - MidwayUSA
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  #7  
Old 01-07-2010, 11:12 AM
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Re: 7mm WSM brass

Quote:
Originally Posted by txsendero View Post
+1

If I were going to size from 300 wsm it would have to be the lapua brass, and they don't
make it so I use the Winchester 7mm WSM and have no complaints.

I can weight sort the Winchester and end up with matched brass a lot cheaper that
has the right case head stamp on it.

Norma makes good brass but they are proud of it.(twice as much as the Win or Rem brass)

J E CUSTOM
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