US869/ 300 RUM ?

[bergara0256]

I use h-1000 in my rum. I don't get anywhere near 100gr of powder in there. It shoots 230 at 3,000FPS.

 

[del2les]

US869 and 180's will work, and I have shot a fair amount of old mil surplus powder that for all practical purposes was US869. The vels are on the lower side for a 300RUM, but if it is all you have, have some left from years gone by or have bulk mil surplus like I did/do, then it will work.

Personally, I load most of my 300RUMs with Retumbo, and with a 180gr NAB, I am running just over 3,400fps in my 26" tube. A little higher in the 28".

 

[Calvin45]

I use h-1000 in my rum. I don't get anywhere near 100gr of powder in there. It shoots 230 at 3,000FPS.

Makes sense, 869 is a ball powder, h1000 is extruded stick type. As a rule you can't get nearly as much of that pellet/kernel shape into a given volume.

That sounds like a good load! Velocity is right where I'd expect, in my 300 win mag I get 225s to 2760-2800 so 200 feet per second faster with a 5 grain heavier pill makes a lot of sense.

Do you find the h1000 lives up to the reviews it gets regarding temp insensitivity and consistency?

 

[meatyrem]

H1000 is one of the best for temp stability. I couldn't get it to group Well with 180 scirocco but at 94.5gr was around 3200 and according to book could go to 96gr

 

[bergara0256]

Makes sense, 869 is a ball powder, h1000 is extruded stick type. As a rule you can't get nearly as much of that pellet/kernel shape into a given volume.

That sounds like a good load! Velocity is right where I'd expect, in my 300 win mag I get 225s to 2760-2800 so 200 feet per second faster with a 5 grain heavier pill makes a lot of sense.

Do you find the h1000 lives up to the reviews it gets regarding temp insensitivity and consistency?

Yes, the gun groups well and don't see a difference when the weather is cold or warm.

 

[K.E.C.]

2 Different threads, 1 for 7Rum and 1 for
300RUM. Ha. Ha. Though I was loosing my mind.
869 will work fine, if you live or going to hunt with temp swings, Be careful.
I like Retumbo, used it alot, but since Vihtavuori is less expensive and I don't care if I burn my barrel I have been using
N-570 get 100 to 200 more fps.
With 185 Juggernaut and N-570 out of a
28" barrel she's cruising nicely 3250fps.

 

[7Rum Slayer]

I have tried US 869 in both my 7 RUM and my 300 RUM and quickly went back to Retumbo. I was looking for a full case with the 869 but I couldn't get the velocity or the consistency with it. Sd and Es was horrible in my rifles. Hope this helps, Jason

 

[ak49guy]

Yup! I was just looking at hodgdons data…the do indeed have data for 180s with 869, it's not that it can't be done but the velocity tops out at 3070 or so with 107 grains of the stuff packed in there if I recall correctly, I'm just thinking why use up barrel life and components and generate all that blast and recoil just to match boring old 300 win mag performance?

The other four you list here should all be great, and of them my moneys on rl25 yielding the highest muzzle velocity and overall performance.

Rl22 may be a tad on the fast side for the RUM case but I suspect would still make more sense than 869 on the other end.

Retumbo would be the best bet. I got 190 VLD's soaring at 3100 with Retumbo, N560 would be the next best thing. Both shoot really well and have great velocity with realistically low SD, in my rifle of course.