IMR 7828 vs H1000

anarchist

Sergeant
Belligerents
Minuteman
Nov 13, 2011
204
3
53
I'm new to reloading for the 300 WM. I have read that the military uses H1000 in their loads. I assume that is for velocity and temperature stability. While I have some H1000, I can't seem to locate any more. There is plenty of 7828 and 7828SSC available. How does this powder compare in terms of velocity and temperature stability? Bullets I'll be using are SMK 190, SMK 220, AMAX 208.
 

Aimsmall55

Gunny Sergeant
Belligerents
Minuteman
Oct 23, 2010
2,694
53
Meridian, MS
Ssc= SUPER SHORT CUT. They do this so it meters better. Although it burns the same as regular 7828. 7828 is known to be a bit temp sensitive but it works pretty good for the bigger bullets like the 220 smk. It will give you a good bit more speed. H1000 is just an all around good powder. It won't push the big bullets as fast as 7828 but its good for any size bullet and an "extreme" powder. For your bullet choices id go with h1000. For the 208 start at 75 grains and work your way up.
 

18Echo

Sergeant
Belligerents
Minuteman
Jun 12, 2007
773
80
Maricopa Co., AZ
I couldn't find much info about 7828 either, but I did notice in my Berger vol.1 that 7828 was listed for many bullet weights, pushed the bullets faster than all but Retumbo, and case capacity was around 93-95% with the ssc in the .300WM.

I couldn't find H1000 either so I bought 16 pounds of 7828ssc when I found it. I hope it works for my .300 / 7-300 WM switchbarrel being built.....
 

Wildboarem

Private
Belligerents
Minuteman
Mar 3, 2011
90
0
46
Northern CO
I load the 7828 ssc in my WBY.300 with the 208 AMAX. I didn't have any h-1000 and I thought I could get more velocity with it. It is super accurate and easy to load for.
I developed 2 -105 bthp loads for my wife's .243, one using h-1000 an the other 7828ssc. The 7828 is a bit more accurate (.3-.4's) and the h-1000 (.4-.5's). Both are going around 3050fps and both are accurate. I don't believe all the hype with temp sensitivity. I guess I'll find out this summer ;).

Sent from my KFTT using Tapatalk 2
 
Last edited:

zackm

Sergeant
Belligerents
Minuteman
Oct 30, 2013
167
5
New Castle, PA
I have several loads for the 300 win mag. And both of those powders that i load for several 300 win mags and they shoot very well in just about every rifle i try them they are ocw's. i use 7828 and h1000 with 180 gr., and 210 gr bergers. My next test is with h1000 and 230 gr bergers. P.M. Me if you would like details on loads.
 

17874

Sergeant
Belligerents
Minuteman
Feb 8, 2012
583
34
CA
EASY, I have been waiting for an 8 lb keg for over six months now. Down to 1.5 pounds now.
 

nuclear_shooter

Sergeant
Belligerents
Minuteman
Jun 28, 2013
622
8
Where the hell you at? I haven't seen one pound in over a year.

It's good to see that SOMEONE has access to some.
SW VA. Walmart near me always has a few lbs. Can't get some other powders I really want though (H4350) but that's another story.
 

PEWPEWPEW

Private
Belligerents
Minuteman
Feb 16, 2014
8
0
Same boat here. Tons of 7828 available. Building loads for 208amax in savage 110 hs with 24inch barrel. I see lots of history with h1000 but not so much with 7828. But the little I do see is positive. Time to buck the trend?
 

PEWPEWPEW

Private
Belligerents
Minuteman
Feb 16, 2014
8
0
Anyone go ahead and get some newish loads for the 7828/208 AMAX combo? I'm about ready to jump on 16+ lbs. I have my brass/projectiles/primers ready...just need some feed...gonna do a mix of 208s and 190SMK.
 

shoot4fun

Gunny Sergeant
Belligerents
Minuteman
  • Oct 27, 2003
    4,239
    636
    Riverside, Alabama, USA, etc
    The only thing about either of these two powders & 300WM is that a pound just makes you want more. Not many rounds per pound. I burn Retumbo with heavy 230 Bergers and it is great but would burn H1000 with lighter. IMR7828 is slightly faster than H1000 and is more temp sensitive.
     

    Aimsmall55

    Gunny Sergeant
    Belligerents
    Minuteman
    Oct 23, 2010
    2,694
    53
    Meridian, MS
    The only thing about either of these two powders & 300WM is that a pound just makes you want more. Not many rounds per pound. I burn Retumbo with heavy 230 Bergers and it is great but would burn H1000 with lighter. IMR7828 is slightly faster than H1000 and is more temp sensitive.

    Couldn't have said it better. 91 rounds per 1 pound of Retumbo with the 230 Berger average. Shooting the 215 or 200 is LESS by 10-15 rounds. That's why I stick with the 8 #'s or alot of 1# same lot cans. So 7,000x8/76.5 =732 rounds of 230'bergers per 8#'s. If it were a .308 with 45 grains it'd be 1,245 rounds per 8#'s. that's a pretty BIG difference. I guess it beats the hell out of a .338 Lapua running 90 grains of Retumbo getting about 115 less loads per 8#'s!