7 SAUM SA 26” VS 7 SAUM LA 24”

[Baker Alvin]

Tagging In!

 

[dogz]

I'm not sure if there's a large enough difference in recoil/barrel life that a guy would notice it.

I'll vote 7 PRC for a Long Action build

Anyone shot both and can confirm yay or nay?

I'm with you on this, plus long run...the PRC brass will be readily available

 

[RH300UM]

To the OP
My 26 inch barreled 7saum is a remy short action. I just started a new 8lb jug of rl26 (different lot) I am getting 3043 fps es of 8 @ 72* and 4800 elevation with the 175 EH berger in Norma brass that is 6x fired.

 

[JakeC]

To the OP
My 26 inch barreled 7saum is a remy short action. I just started a new 8lb jug of rl26 (different lot) I am getting 3043 fps es of 8 @ 72* and 4800 elevation with the 175 EH berger in Norma brass that is 6x fired.

That stuff really is magic, huh? That berger is very short on the bearing surface but that's still a wild number. My August project is to play with N565 and see what I can do with the 180eldm.

 

[HBadger89]

To the OP
My 26 inch barreled 7saum is a remy short action. I just started a new 8lb jug of rl26 (different lot) I am getting 3043 fps es of 8 @ 72* and 4800 elevation with the 175 EH berger in Norma brass that is 6x fired.

Nice! Going further down the rabbit hole, are the 7 SAUM and 7 Rsaum the same thing?

Sounds like regardless of the caliber I need to keep an eye out for RL26 lol.

 

[Phil Rizzo]

Do your homework on the rest of the story concerning R26 before you pay the price that will be required.

 

[JakeC]

Nice! Going further down the rabbit hole, are the 7 SAUM and 7 Rsaum the same thing?

Sounds like regardless of the caliber I need to keep an eye out for RL26 lol.

They are the same thing. Almost every website uses a different tag of course. The variants of "7mm remington short action ultra magnum" are endless.

 

[HighDesertHunter]

My thinking has changed over the years focusing on getting just enough out of the rifle for the purpose. I would look at the max range you are targeting and the try to keep the ELDx at 1,800+ FPS at that range. You can likely go 24" or even 22" barrel. I would go SAUM or WSM in either a SA for the SAUM or a XD for the WSM.

 

[StaMic006]

I feel the 7 saum with either the 175-180 class cup/core lead's or a 140-150 class copper monolithic projectiles will work great for that. It will likely come in just a bit under your speed goals though.

Regarding the barrel length/action, I think you're right on track. Personally I have never had a 24" barrel get in my way hunting most western game. 26" is where I start to notice for whatever reason. I'm a big fan of medium length actions, the drawback there is that you're "limiting" yourself to certain cartridges if you ever want to re-barrel to something else like a 7 PRC or 28 Nosler... etc, but are you ACTUALLY ever going to do that? I probably won't. Components for medium actions are pretty abundant now so that's a non-issue for me.

Personally, I built my 7 saum with the following:

Chamber: 7 SAUM, .180" freebore reamer
Action: Lone Peak Fuzion ti Medium
Barrel: Benchmark 22" Carbon Sendero lite

AND... my current favorite pet loads

175 Berger Elite Hunter @ 2850 fps (63.5 gr N565)

143 McGuire Ballistics Copper Rose @ 3100 fps (63 gr H4831sc)

Both loads are on the warm side, and temp stable powders selected purposefully. I've gotten another 50-100 fps using powders like N560 & RL26 but I hunt from 0-85 degrees F with this gun. So give a little speed to get a little better temp stability.

I've killed out to 500 yards with this setup, and both bullets (175 EH & 143 CR).

Whats your COAL with the 175's?

 

[StaMic006]

I run a SAUM on a medium action with a 25 inch barrel. I'm using the Berger 180 VLD at 2900 fps and have killed a boatload of animals including 3 eland. The SAUM with the 175 should be about as effective.
Bruce

Whats your COAL for the 180's?

 

[KH_Outdoors]

Whats your COAL with the 175's?

I believe I shot the 175 EH's at 3.080" coal, approximately .030" off.

 

[Wilderness Blacktail]

To add a bit, Ive had a 22" 7rem mag with 7.75" twist and well as a 22" 7PRC with 8" twist. Ive mostly loaded monos in the 150ish range, 4 or so with a decent group of powders.

From what ive seen 3300 with a 150 mono is overly optimistic, even in a 26" itll be tuff.
The 150 high BC monos are very long with a lot of bearing surface so they dont necessarily give the same speeds a same weight cup n core bullet will.