7 Saum powder selection

[Forest]

ADG is pretty transparent on their schedule I would suggest contacting them directly. And get on a couple preorder lists, as not all of them get what they have ordered with each batch. I got mine through Unknown Munitions.
As per powder H4831sc and RL23 seem to be the better options to cover the common range of bullet weights. H1000 if on the heavier side and H4350 on the lighter side. Luckily I was able to find some H4831sc for my rig, haven't shot the reloads yet have a ladder ready to go if the sun ever comes back out.

 

[N2TRKYS]

H4831sc was very accurate, but was too slow. R26 gives me 2950fps with 160 grain Accubonds from a 22” barrel.

IMR7828SSC gave me nearly identical the same velocity as R26.

I use Rem 9.5M primers.

 

[ID_Matt]

RL23 with 175's for me but would also put N560 and H4831SC on the list. H1000 is another good choice. RL 26 works well but may not be as stable as you prefer.

 

[Mag_7s]

ADG is pretty transparent on their schedule I would suggest contacting them directly. And get on a couple preorder lists, as not all of them get what they have ordered with each batch. I got mine through Unknown Munitions.
As per powder H4831sc and RL23 seem to be the better options to cover the common range of bullet weights. H1000 if on the heavier side and H4350 on the lighter side. Luckily I was able to find some H4831sc for my rig, haven't shot the reloads yet have a ladder ready to go if the sun ever comes back out.

I would be pretty interested to hear the results of your latter testing.

 

[smokinbobf4]

I am using h1000, 210m out of a 22” proof barrel and getting 2970 with 168 vld. Very happy with the velocities and accuracy. I have slight crunching when seating bullets and would like to try some rl23 but I haven’t seen any available in a long time. Tried h4350, accuracy was good but speeds were to low.


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[kharb22]

I have a 26in barrel I was running 180 ELDM'S, RL26 and ADG brass. At 62 grains, I was getting 2850ish. I also have a 18in setup, pushing 150 grain Berger classic hunters at 2950 with 62.5 of H4831sc. But that load occasionally gets a little ejector swipe, so I'll probably back it off .5 to 1 grain and see where it gets me.

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[z987k]

RL26 will be the fastest in your scenario. Followed by Norma MRP, Ramshot Magnum, IMR 7828SSC and N560.
64.2gr of RL26 will get you right under max pressure if you're seating those out at 3.200.

 

[Rifleman86]

I use H4350 but I’m shooting a 150 gr copper solid (Badlands BDII)

2950 out of a 22in proof barrel.

 

[Jtgraham01]

Vote here for RL26. It does crazy stuff- in a good way.

I got 2900 fps in a 6.5 Creedmoor shooting 147s from a 26” barrel. And that was a lower node. I had 2990.

Used 62g with 175 ABLR and a 24” barrel in my recent 7 WSM build as a starter load. 2850 fps without any pressure at all.

I realize you’re asking for 7 saum, but I think you can hit upper 2800s easily with RL26.

 

[Mag_7s]

Vote here for RL26. It does crazy stuff- in a good way.

I got 2900 fps in a 6.5 Creedmoor shooting 147s from a 26” barrel. And that was a lower node. I had 2990.

Used 62g with 175 ABLR and a 24” barrel in my recent 7 WSM build as a starter load. 2850 fps without any pressure at all.

I realize you’re asking for 7 saum, but I think you can hit upper 2800s easily with RL26.

Vote here for RL26. It does crazy stuff- in a good way.

I got 2900 fps in a 6.5 Creedmoor shooting 147s from a 26” barrel. And that was a lower node. I had 2990.

Used 62g with 175 ABLR and a 24” barrel in my recent 7 WSM build as a starter load. 2850 fps without any pressure at all.

I realize you’re asking for 7 saum, but I think you can hit upper 2800s easily with RL26.

2900 with 147s is pretty dang good. Are you using small rifle primers? As far as RL powders, they are pretty much unobtanium, and price gouging is a real issue. My hope is H1000, or 4831sc for the 175s berger eh will yield good speed and hopefully a decent node.

 

[Jtgraham01]

2900 with 147s is pretty dang good. Are you using small rifle primers? As far as RL powders, they are pretty much unobtanium, and price gouging is a real issue. My hope is H1000, or 4831sc for the 175s berger eh will yield good speed and hopefully a decent node.

Yes sir. CCI450s in the 6.5.

And yes, they’ve been pretty high for sure. I got lucky and traded into a keg 1 year ago.

I think H1000 will get great speeds for you.

 

[rootacres]

I have also heard good things about H4831. I don't have any so H4350 is what I started and finished with. I think some other powders may squeeze out some slightly higher MVs but my SDs with H4350 shooting both 143gr hammers and 168gr VLDs were single digits. Hard to argue with.

22" Proof, 55.5grs H4350, Fed 215 primers
2835fps w/ 168 VLDs | 3030fps w/ 143 hammers

I may try some large rifle primers instead of the mag primers and see what happenes. My Federal inventory is super low.

 

[Mag_7s]

I have also heard good things about H4831. I don't have any so H4350 is what I started and finished with. I think some other powders may squeeze out some slightly higher MVs but my SDs with H4350 shooting both 143gr hammers and 168gr VLDs were single digits. Hard to argue with.

22" Proof, 55.5grs H4350, Fed 215 primers
2835fps w/ 168 VLDs | 3030fps w/ 143 hammers

I may try some large rifle primers instead of the mag primers and see what happenes. My Federal inventory is super low.

It sounds like h4350 works well with the mid weight 7s and RL 23, h1000, and 4831sc for the heavier 7s. I was able to find some 4831sc, but really hoping h1000 yields accuracy and velocities in the 29s out of a 26" tube. H1000 is what I have a lot of, and with the price gouging going on with all components it would be nice not to play their game.

 

[BPollard]

I don't know how it will work in the 7 but my 300 saum LOVES Win760 I could put rocks in that thing and it will shoot.

 

[ManBun]

H4831sc works the best for accuracy in my rifle. I have a defiance anti x in XM length with the chamber throated long in a 22” benchmark carbon sendero lite barrel. My load is getting 2905 fps average with 61.8grs, CCI 200 primers, Remington brass, with 175eld x.

 

[zacko]

Evening all,

Well in NZ any how.

20" bartlein short action Defiance rl26 fed 210 and adg brass

 

[Ucsdryder]

View attachment 539811Evening all,

Well in NZ any how.

20" bartlein short action Defiance rl26 fed 210 and adg brass

What bullet?

 

[PanhandlePilgrim]

Still in the tuning stages but my 7 saum is looking good with 180 HVLDs and 64.2 gr of H1000 going an average of 2966 from a 26" barrel.

 

[zacko]

What bullet?

Sorry most important part 180 Eldm

 

[Ucsdryder]

Sorry most important part 180 Eldm

That is absolutely smoking fast. Make sure you have your protective eyewear on! I haven’t seen anyone get 2900fps out of a 20” barrel.