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to use magnum primers or not

 
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  #1  
Old 07-07-2004, 04:46 PM
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Join Date: Jun 2003
Location: Texas
Posts: 57
to use magnum primers or not

I am working up a load for my 7mm STW using a 160grain Failsafe moly bullet, with 68-70 grains of Accurate XMR 3100. my question is this, should i use CCI large rifle or CCI large rifle magnum primers.
Thanks
Gene Cole III
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  #2  
Old 07-07-2004, 06:51 PM
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Join Date: Dec 2001
Location: Long Island, New York
Posts: 2,127
Re: to use magnum primers or not

I have been shooting the 7STW for years and have only used Fed 215 magnum primers. The large quantities of slow burning powder typical for this big case call for magnum primers.

A check of your loading manual should confirm the recommendation of magnum primers in the 7STW.

VH
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  #3  
Old 09-30-2009, 09:01 AM
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Join Date: Feb 2009
Posts: 17
Re: to use magnum primers or not

Yep,over 60grs of powder and go to Mag primers.60 and over powder is a lot to ask of a std.primer to burn.Now saing that in these times ov sortages,use what you can get.you may not get the best from your rifle,but yo can still shoot and will be able to try new loads.As been stated before,primers can and will change your groups,so,try them out on paper before going hunting .pan.
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