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Which Primers?

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Old 08-28-2008, 10:42 AM
HTG HTG is offline
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Join Date: Jul 2008
Posts: 62
Which Primers?

I will be loading for a 7mm Remington mag with Nosler Brass. I am trying to decide between Federal 215 Primers or CCI large rifle magnum primers. Just wondering if there would be any difference for long range accuracy?
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Old 08-28-2008, 11:02 AM
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Join Date: Oct 2005
Location: Michigan
Posts: 2,232
Re: Which Primers?

They can make a difference, check out the following webpage that did a primer strength test. Primer Testing Reference

I'd recommend working up a load with each, shooting over a chronograph and seeing which primer/powder combo works best. Get 100 of each to start.

My best 7mm Rem Mag load consists of the 162gr A-max, 70.2gr of RL22 and a Fed 9 1/2 primer (not magnum) in a Norma brass. It's not very hot in my 24" barrel and averages almost exactly 3000fps, but it is very consistent/accurate. This is above some listed loadings, the Norma brass I have seem to have a larger internal capacity than other brass I've used, and thus I usually end up with more powder for the same velocity than the books show (still with no pressure signs). So PLEASE work up your own load in your own rifle/brass etc.

If some is good and more is better, then too much is just right.

My mind is a raging torrent, flooded with rivulets of thought, cascading into a waterfall of creative alternatives

Last edited by AJ Peacock; 08-28-2008 at 11:15 AM.
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Old 08-28-2008, 02:39 PM
HTG HTG is offline
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Join Date: Jul 2008
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Re: Which Primers?

Thanks, I was planning on buying the Federal 215 but everyone was out of stock.
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