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Large Rifle/ LG Magnum Primers?

 
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  #8  
Old 12-17-2009, 03:31 AM
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Re: Large Rifle/ LG Magnum Primers?

I have hunted with both Magnum primers, and non-magnum primers in a 300 Winchester Magnum and Reloader22 in temps below -30c (-22f) without problems. I've always used what ever primer gave the best groups for the load I was using. Now if I was using 70+ grains of a ball powder in that cold of weather I might want to go with a magnum primer..

With Reloader22 I lose about 150 FPS from +20 to -20c (68f to - 22f) and adjust my loads accordingly. I'm thinking of trying a less temp sensitive powder next year but don't want to leave R22 as it's always given me great accuracy, and velocity in various calibers.
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  #9  
Old 12-17-2009, 12:02 PM
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Re: Large Rifle/ LG Magnum Primers?

you're going to be in the neighborhood of 90+ grains of powder.

That's magnum country. I wouldn't even think of using large rifle primers for that much powder.

Why not just buy some magnum primers?
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  #10  
Old 12-17-2009, 01:28 PM
436 436 is offline
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Re: Large Rifle/ LG Magnum Primers?

Believe in most cartridges it comes down to three elements; cartridge {capacity} size, powder {type} burn rate and weather {hot or cold} temperature. These three seem to influence whether you should use {magnum or standard} primers in your reloads, more often than some of the other factures that might come into play.
Just my .02

436
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  #11  
Old 12-17-2009, 01:43 PM
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Re: Large Rifle/ LG Magnum Primers?

I would use lg mag primers but I cant find any all I have is Lg Rifle.
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  #12  
Old 12-17-2009, 02:34 PM
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Re: Large Rifle/ LG Magnum Primers?

sinclair has winchester and wolf in stock...

Magnum Rifle Primers
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  #13  
Old 12-17-2009, 03:01 PM
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Re: Large Rifle/ LG Magnum Primers?

Quote:
Quote:
Originally Posted by ovastafford View Post
It is a 300 rum i was using rem 9.5 primers before and all i have is win large rifle
You can always just try it, but my guess is you need mag primers for this cartridge. Check gunbroker, they usually have some available, but they usually go pretty high. Check gun shows also - there will usually be some there also.

Mark
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  #14  
Old 12-17-2009, 05:18 PM
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Re: Large Rifle/ LG Magnum Primers?

Check Cabelas. I have ordered alot of primers from them lately. On their web site they say they are backordered for over a month. Most of the time I have received my primers within a couple weeks. They are around $32 per 1000. If you watch for their coupons and place a larger order with a couple of buddies it helps absorb the $20 hazardous shipping charge.
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