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Powder charge for 7mm Remington Magnum using 168 vld

 
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  #8  
Old 01-31-2010, 02:57 PM
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Location: Ogden, Utah
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Re: Powder charge for 7mm Remington Magnum using 168 vld

I saw best accuracy with 71.6 Gr of Retumbo in my 7 mag @ 3025 FPS. The bullets were jammed .005 into the lands and grooves. I ultimately went with 7828 ssc. I use 64.9 gr of IMR 7828ssc and get 2974 fps with bullets jammed .005 into lands and grooves. Less powder and a little bit more accuracy with the 7828 ssc. I only gave up 50 fps but the ES was down to 6 with the 7828 and with retumbo it was in the high teens or low twentys if i remember right. Hope this helps out.
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  #9  
Old 01-31-2010, 02:59 PM
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Re: Powder charge for 7mm Remington Magnum using 168 vld

Oh, I also used 4831 sc and could not get it to shoot well, as well as rl22. With rl22 i saw lower velocities and less accuracy out of my 7 mag.
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  #10  
Old 01-31-2010, 03:30 PM
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Re: Powder charge for 7mm Remington Magnum using 168 vld

Quote:
Originally Posted by Gretagirl View Post
I am using Hodgdon Retumbo Powder and would like to get 2800' to 2950'/sec out of my Savage 7mm Remington Magnum. I'm looking for recommeded powder charges. I checked the Hodgdon site, but didn't see the 7mm Remington listed.

I am trying to make some long range loads and the gun is new. Any suggestions?
Cartridge Loads - Hodgdon Reloading Data Center - data.hodgdon.com

They do have the info listed on their site.
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  #11  
Old 02-01-2010, 07:07 AM
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Re: Powder charge for 7mm Remington Magnum using 168 vld

Thanks for all of the replies. You have armed me with a lot of information. I'll let you know how things work out.
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  #12  
Old 12-09-2010, 03:51 AM
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Re: Powder charge for 7mm Remington Magnum using 168 vld

Quote:
Originally Posted by Jumpalot View Post
Email Berger and they will send you load info.
I'd suggest H1000 extreme 71grain shoots extremely well in mine. 9.5 to 1 twist rate; H4831 sc extreme 63.5 as well. Reloader 25 right around 66 grain charge. biggest thing in my opinion is your Cartridge length for me 3.80 - 3.85 shoot exceptional for me. A good brass is winchester, federal or lapua, all build good pressure and come pretty consistant. Winchester magnum primers give a good constant, hot, presure building ignition. just whats worked for me good luck! have fun
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