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Large Rifle/ LG Magnum Primers?

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  #15  
Unread 12-20-2009, 08:36 AM
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Re: Large Rifle/ LG Magnum Primers?

As some have stated, a standard primer works in my 338 win 210 with h4350 2730 fps
using a 225 speer bullet..........The story holds true for the 300 win and standard primers......
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  #16  
Unread 12-20-2009, 02:53 PM
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Re: Large Rifle/ LG Magnum Primers?

Load for about 20 yrs, 225 NP, 91 gr IMR7828, F215, 2950 FPS, 340 WM
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  #17  
Unread 12-20-2009, 03:35 PM
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Re: Large Rifle/ LG Magnum Primers?

Quote:
Originally Posted by ovastafford View Post
A friend of mine told me the other day that you can use large rifle primers in magnum cartridges. Is this true?
If you are using the Winchester "Ultra" 300 Magnum may I suggest using the Federal "Gold Medal" match 215 primers? All the guys that are into "extreme long range" precision shooting here at the "club" use them...so do I. When asked what primer he used, Harlod replied by saying, "there is only one real primer". He was refering to the Fed. GMM 215.
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  #18  
Unread 08-28-2015, 08:41 PM
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Re: Large Rifle/ LG Magnum Primers?

Quote:
Originally Posted by loaders_loft View Post
depends. not a good idea for really harsh cold temps...
I've been getting nice groups (avg. 1") with my Rem. 700 in .300 WM with 73 gr. H4831sc and 190 ABLR's using Fed. 215 match primers. The bullet is set off the lands about .005" and I get between 2800 and 2850 GPS on average without any signs of pressure.

However, I find it a bit confusing that Lyman is the only manual which calls for Mag primers for the .300 WM. Hornady, Lee, etc. specify LR primers....I just loaded ten with WLR primers and will chrono both and see how they compare re velocity, SD and accuracy. I plan to hunt elk in CO in November so weather could vary from cold to warm on any given day.

Any thoughts or suggestions would be appreciated.
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  #19  
Unread 08-28-2015, 10:23 PM
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Re: Large Rifle/ LG Magnum Primers?

Quote:
Originally Posted by ovastafford View Post
I would use lg mag primers but I cant find any all I have is Lg Rifle.
I located some Federal 215 (Large Rifle Magnum) at Shydas Outdoors in Pa.
The primers were only $32.99 for a thousand, but HazMat fee and shipping to La was quoted as $46.00. I will hold off for now- Can't afford to spend $79.00 for 1000 primers.

**** Don Titus. Just realized this Post was started in 2009. Probably no one else is still paying any attention.
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  #20  
Unread 08-29-2015, 08:22 AM
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Re: Large Rifle/ LG Magnum Primers?

The only times I ever got a delayed fire from any primers was when I was using double based powder Reloader-22.I had bought some Sellier&Bellot large rifle magnum primers and was trying them out in a 300 Win Mag.I was getting about a half a second delay before the rifle fired.It did the same thing with some CCI 200 large rifle primers.One of the one's using the CCI-200's failed to fire.I pulled the bullet when I got home to see if the primer had ignited at all and found the powder was blackened but none had ignited.I don't know,maybe the double based powder needs a hotter primer.Never had any issues with this rifle or lot of powder using Winchester large rifle magnum primers.The S&B and CCI worked fine with single based AA-4350 and Ramshot Big Game.
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  #21  
Unread 08-29-2015, 09:14 AM
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Re: Large Rifle/ LG Magnum Primers?

Quote:
Originally Posted by ovastafford View Post
I would use lg mag primers but I cant find any all I have is Lg Rifle.
This week, all I saw in my LGS is 9 1/2Ms. If that's all you have/can get and can make it work ... that's what reloading is all about. Cheers!
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