7 RUM and Reloder 26

[Blackdirt Cowboy]

Is anyone using this combination? I have a factory Remington sendero in 9.5 twist and I'm thinking of trying the 143g hammers. All my research is leading me to retumbo, h1000, and rl 25. I have very little of these powders, maybe enough for load development, but no more. I do have a few pounds of rl 26, but I can't find any data on that powder in the 7 rum. If anyone is using that, can you help me out? I don't need specific recipes, just a safe starting point. If you have any other powders to recommend, that would be great as well. I have several slow burning magnum powders on hand. RL 33, N570, and maybe some IMR 8133.

 

[GLTaylor]

N 570 gives me great accuracy and velocity with 131 Hammer Hunters. 103+ grs = high 3600s.

 

[Cowboyblaster]

Wish i could help with this but im watching as well im getting insane accuracy with the h1000 pushing 168 Berger VLDs at a little over 3200

 

[meatyrem]

Does anyone else have anything for this round? I would like to thinks so as I just picked up 6lbs and would like to hear there is good performance with this round and powder

 

[Slammer14]

I run rl26 in my 300 rum. 210 vld 83 grns. At 2950 out of a 24" barrel groups them all in the same hole.

 

[MtPockets]

Blackdirt, did you have any luck finding RL26 data for the 7 RUM?

 

[Blackdirt Cowboy]

I did not.

 

[MtPockets]

I did not.

Thanks.

Seems like load data is as hard to find as the powder is, even on the Alliant website.

 

[Rum Man]

Following!


Rum Man

 

[Reemty J]

On the hammer down loads info a fellow named " black dirt cowboy " had a load as follows. 7mm RUM
143 HH
N570 102 grains
3635 fps
3.85 oal
ADG brass
F215 primer
26" barrel
1-9.5 " twist
.5 group @415 yards

 

[Rum Man]

I'm going to try the 180 gr bergers and Retumbo plus Re-33 and see where that takes me !
I have some Adg brass coming .
Thanks !

Rum Man

 

[K.E.C. Darkside]

I have a Very comfortable and accurate load for 143 H.H. for my Sendero. 7RUM
N-560 = 88grs. Avg.3400fps.
CCI250, ADG brass 2nd fired,
O.A.L.- 3.730. Max Mag length 3.700.
Load 1 in the barrel and you can get 1 in the Mag . I don't have a picture, but 3 shots showed 2 bullets touching, 5 shot looks like a 3 leaf clover at 100yds.
Hope this helps.