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Old October 25, 2012, 09:20 AM   #1
Trapperbk
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7mm. Rem. Magnum help....

I am getting ready to begin loading for my 7mm. magnum. I would like to load the 139 grain Hornady SST, or the 150 grain Nosler Accubond. I am looking for a load as close to factory loads as possible, and not having a chrono at this time I am not sure. Does anyone out there have a load that is close to factory. I am loading for a Ruger M77. Thanks.
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Old October 25, 2012, 09:49 AM   #2
HiBC
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If you will look in a Nosler reloading manual I think you will find IMR4350 to be a top performer with a 150 gr bullet.You might also consider RE-19 and H-4831.

I never bothered with the lighter bullets,myself.
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Old October 25, 2012, 11:31 AM   #3
hooligan1
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As HiBc already mentioned the Nosler #6 loading manual has the IMR4350 as their top performer, I second that, I also use IMR 4831 with the 150 grn Ballistic Tips.
Now if you move up to 160 grn Accubonds, I use the IMR 7828 for that.

The Hornady Custom ammo that features the 139 grn BTSP is also very accurate out of my 7mm mag.
I have also a 140 grn Accubond load using IMR 4831 for it.

I digress now....
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Old October 25, 2012, 02:54 PM   #4
Trapperbk
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Thanks for the help.....
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Old October 25, 2012, 09:11 PM   #5
GeauxTide
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In the several 7mmRM I've owned or loaded for, I've not gotten the best performance out of 139s. 150 and, particularly, 154 Hornadys have given great results with IMR 7828 and H4831. There is a lot of variance in chambers, so consult a loading manual. I'd get a box of 150 WW or REM at Wally or Academy and measure your cases for a good baseline.
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Old October 25, 2012, 09:22 PM   #6
Brian Pfleuger
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CAUTION: The following post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information.

According to QuickLoad, 139gr SST, 24" barrel:

Ramshot Magnum 81.1gr 3288fps
Vihtavuori N560 75.5gr 3287fps
Alliant Reloder-25 78.0gr 3286fps
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