Home Forums Hunting & Shooting Long Range Hunting H1000 7 Mag

Has anyone worked up loads with this powder. My rifle is throated for 168's. The Hodgon data is beyond slow.

lefty

My Ruger 77 with 168s likes 69-69.5 grains of H1000. My longer throated 7mm likes them with 71 grains of H1000.

Having good luck with 67 grains of H1000 with the 180 scenars too. Seems to be an excellent powder for this weight class in the 7. All those with WLR primers.

I'm have not used H-1000 in a 7 rem mag, but I do use H-1000 in my 270 win 140 TSX, 300 win 180 grain and 338 Laupa with 300 grain SMK's. I love H-1000 even the 270 gets some impressive velocities with H-1000.

For reasons already beat to death multiple times on the Fire, the 7RM is loaded at lower pressure than .270, 7 Wby, etc. If one takes it up to 60K or better, bullets move a lot faster.

I don't mind going over SAAMI with my gun. It's a MkV, a very strong action and wears a new SS Brux. So, rough throats, and other technical reasons for bullet and powder company test barrels to show wider than usual pressure swings, shouldn't be an issue for me. I keep an eye on my barrels with a Hawkeye borescope and when a barrel starts looking like that, it gets swapped before trouble happens.

But, when you branch out on your own and exceed SAAMI, you do so at your own risk. The companies have already covered their posteriors...

DF

69.5gr of retumbo gives me 3070fps with 168 smk 26 inch tube.what kind of velocity do you get with 69.5 grs of h1000 30338?

In a previous 7 RM, I used 70.0 H1000 under a 160 Nos PT. I got 3050-3075 in a 26" barrel. I like it.

work up from 68-72gr and you will hit a sweet spot or maybe two

I went up to 73 grains and only got 3011fps and poor 2"+ accuracy in my 26" barrel so it is worth testing just to learn.
John

I like 71.5g Retumbo much better, or should I say, my 7RM's do.

In a 24" factory barreled Ruger 77, I got 2900 fps with 69.5 gr of H1000.

I must have a fast lot of retumbo.I apologize getting off topic,my bad.

69.5 grs H1000 168gr bergers classic hunters shoot very well for me this is in a Rem 700 sendero sf 26" barrel