7mag powder preference

[SansSouci]

One of the many amazing traits of the 7MM Rem Mag is the variety of powder that'll perform superbly with it. Unique would probably work in the 7MM Rem Mag.

 

[Wv shooter]

I'm sure this has been brought up many times before but I always seem to get conflicting info. So here's my story. Bought a Savage lrh 7mag a couple years back to go on a mule deer/antelope hunt. We decided to go to Sturgis instead, because I love boobies and beer. Anyways, didn't like the muzzle brake or fact that the barrel was actually only 24.5" instead of the advertised 26". Changed out the barrel to a Lilja 26", changed trigger, recoil lug, bolt knob and bedded the action and swapped out the scope from a Bushnell 4200 6-24 (because I always wanted to try one) to a Sightron SIII 6-24. So my question is, I bought a bunch of 162gr Amax's. What powder would you guys run? I used to run H1000 in my Sendero and still have a few pounds left. But I hear it's not up there in velocity as some others. Any pet loads anyone would like to share?

65 grain H-4831 162 gr Hornady Amax rem 9.5 primer

 

[Sengoku]

My 7 rem mag preferred RL22 and N560. You will like either of those two powders. N560 with the 175 berger elite hunter and RL22 with bullets like the barnes 145 lrx.

 

[mtwarych]

Me too!

H4831 is not the powder for blazing speed but it is the most accurate powder for my 7mm mag Ruger #1.

 

[DJ Fergus]

I have had excellent results with retumbo. I ran 162gr bullets @ 3050 with 71.1 gr retumbo in my 26" That is a max load and may be way over max in your rifle cause some people get that velocity with 70 grains. So start about 5% lower and work up. You should be able to find a node somewhere between 3040-3060 fps. I figure that you will find a good seating depth anywhere from .047-.080 from the lands.

 

[J E Custom]

^^^He's nailed it^^^

Hard to beat H-4831

I get 3100+ FPS in W-W brass, 67 grains of H-4831, Fed 215 primers, and a 160 grains Nosler Partition out of a 24" barreled Sako AV, which is my proven elk load. It's accurate and huge elk don't like it, which means I like it. I know I could get 3200 FPS (I've done it with R-22), but I won't fix what ain't broken. It's actual performance makes me think that a 150 Partition or Accubond will work just as well. And I think that a 150 Partition from a .270 Win will kill huge elk just as dead. But I've not yet killed an elk with a .270 Win. But I will.

I like a lot of powders. I love H-4831SC & H-4831.

I had a longer (30") barrel and got 3254 ft/sec with 67.5 grains of H 4831 and a 168 gr match king with the powder (4831) that Hodgdon had recovered from surplus 20 mm cartridges."Warning" this would be a very hot load for rifles that were not chambered correctly for high pressures and velocities.

Even with today's powders I would not expect these velocities without excessive pressures.

J E CUSTOM

 

[Tiny Tim]

Shot H4831 for years out of my 7RM. Been trying H1000 a bit, But accuracy with H4831 has always been top notch. It even shoots great in my 300WM, but leaves some speed on the table.

 

[bpcrshooter]

160gr NoslerAB, nosler case, fed215m primer and H1000 powder......2 shots to warm barrel and then 5 for group all shots @200yd

 

[zr600]

I think I would look to h1000, h4831 either one, rl23, rl26, imr7977, and retumbo.