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I recently picked up a used 7mm magnum, a really nice clean older Remington model 700 and I'd like to just work up a quick no fuss load using 139-140 grain ballistic tip type bullet. So can anyone recommend a good powder to begin with?

I was thinking ramshot Magnum, but I'm open if someone has a favorite.

41

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7828 with 162's:
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H4831 works well with 140's..


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64 grains of IMR 4350 with a ballistic tip or a partition . This has done well in a dozen 7 mags through the years

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My favorite load is:
7 mm RM Remington 700 BDL, 140 grain Nosler PT, 72 grains RE 26, 0.38 MOA


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Originally Posted by 41rem
I recently picked up a used 7mm magnum, a really nice clean older Remington model 700 and I'd like to just work up a quick no fuss load using 139-140 grain ballistic tip type bullet. So can anyone recommend a good powder to begin with?

I was thinking ramshot Magnum, but I'm open if someone has a favorite.

41

Haven’t used Magnum with the 140’s, but 4350’s, 22, 23, 25, 26, 7828, RL17 and 19, Magpro, etc have all worked well with 140-160’s in a few 7 Rem Mags.


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R22 has always been a good starting point with any 7mm RM I've loaded for from 140 - 168 gr bullets.


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Originally Posted by AU338MAG
R22 has always been a good starting point with any 7mm RM I've loaded for from 140 - 168 gr bullets.



I have some 22, been thinking about trying it, works great in 270 Weatherby loads.

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I like IMR-7828 in the 7RM. I'd start with 65 grains or so. Stop adding powder when you reach 3150 fps or so.

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Like super T, I have generally found that powders a little slower than H4831 and RL-22 often group a little better with bullets in the 140-grain class. My recent notes indicate they include Ramshot Magnum (introduced 22 years ago!) and more recently IMR8133. With either 3200 fps or so generally easily possible with published, pressure-tested loads--and both are far more temperature resistant than RL-22, if that's a factor.


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Agree about the temperature sensitivity of R22. It's why I switched over to H1000 under a 168 gr Berger in my current rifle.

But I've always been able to to get good velocity and accuracy with R22 in three 7 RM rifles.


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I use 68.5 grains of Hodgdon’s H1000 for a 140 grain Barnes TTSX bullet that shoots pretty dang good for me.

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RL 22 produced great loads for me with 140’s. It is temp sensitive and I no longer use it. Retumbo, Magnum, and H1000 are my go to now with it. Of those Magnum and H1000 seem to pop up more. I haven’t seen a pound of Retumbo on a shelf in a few years.


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Originally Posted by TakeEm
Retumbo, Magnum, and H1000 are my go to now with it. Of those Magnum and H1000 seem to pop up more. I haven’t seen a pound of Retumbo on a shelf in a few years.

No doubt.

I just picked up 2 pounds of Ramshot Magnum to experiment with. I'll try it in the new 7mm magnum & the 338RUM with some 250 Accubonds.

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All good comments.

Lately, been liking IMR7977, 7828SSC.

H4831 & IMR4831 have been a joy to develop loads,

Will try some H1000 when available.


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With 139 gr hornady bullets imr 4831 was allways a winner for me. mb


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Re-26 or h4831.

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Originally Posted by hanco
64 grains of IMR 4350 with a ballistic tip or a partition . This has done well in a dozen 7 mags through the years
Some powders may get you a little more speed. But this has been accurate in every rifle I’ve used it in. Hasbeen


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My dies showed up today so I'm going to try 70 grains of Ramshot Magnum powder behind my 140 grain SST Hornady and a CCI 250 Magnum primer. Hopefully it will be fairly light recoiling for the big 7mm as its near the starting load for this bullet weight.


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69 gr of RL26 and 150 NBTs make nice little bughole groups out of my2018 production 700 BDL


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Here's the loading I wound up going with.

Remington brass 1x
Ramshot Magnum @ 68.0 grains. Will be good for 2700-2800 fps
CCI 250 Magnum primer
Hornady 139 grain Interlock.

I'll shoot it & report back.

41

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