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Reloading Berger Bullets


Can you turn 300wsm into 7mm wsm

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Unread 01-29-2011, 08:59 AM
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Join Date: Sep 2008
Location: MAX MEADOWS, VA.
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Can you turn 300wsm into 7mm wsm

Can you run 300 wsm brass into a 7mm wsm sizer and turn it into 7mm wsm brass. I dont like the Winchester brass and am wanting another brand and does everyone that shoots the 7mm wsm use Win. brass or what brand
Thanks Ted
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Unread 01-29-2011, 09:08 AM
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Join Date: Jan 2007
Location: Fairfax County, Va
Posts: 737
Re: Can you turn 300wsm into 7mm wsm

Yes BUT The shoulder on the 7MM is farther forward than the 300 and 270, so you need to only partially size the neck down so that you have a false shoulder and then fireform with a modest load for the first firing.

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Unread 01-29-2011, 10:52 AM
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Join Date: Nov 2006
Location: Dayton, Nevada
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Re: Can you turn 300wsm into 7mm wsm

Yes, exactly what dirtball said. All of my 7mmWSM is made from 300wsm Norma brass.

Here's a picture.

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