7 SAUM

[Longtine88]

I think the 6.5SB is gonna be too fast for the hunters. I shoot it on some of my absolute hunters. Shoot the 140's AH's and I think it would be fine with it. 6.5SB is not as stable as you think. I almost locked up a bolt on a 6mm Creedmoor that I developed in 50 degree temps and shot it in 80+ and wasn't good.

 

[JakeC]

I think the 6.5SB is gonna be too fast for the hunters. I shoot it on some of my absolute hunters. Shoot the 140's AH's and I think it would be fine with it. 6.5SB is not as stable as you think. I almost locked up a bolt on a 6mm Creedmoor that I developed in 50 degree temps and shot it in 80+ and wasn't good.

That's good intel. Never saw that kind of nonsense with h4831 in the 3 years I used it. I halfway thought about staball for the 140 AH. I think after the season I might try 15.5 or varget just for the sake of science but I doubt I'll see gains. Actually I'd do that after trying 155AH with the 16.

 

[Kimber7man]

58.5 R23 with the 175 elite hunter, ADG brass, Fed 215M primer works for me. 2,780 out of a 22" barrel, it was under 100 rounds down the pipe and had not sped up yet.
Gonna bump it .5 at a time up to at least 60 to see what I get.

 

[waspocrew]

This thread has been great on timing - just got word my 7 SAUM is complete. I've been able to squirrel away components during the wait which has been nice. I have plenty of RL-23, RL-26, H4831sc, and H1000 to mess around with. I'll update when I get the chance!

 

[Eman1982]

My next build will be a 7 SAUM around the 143g Hammer Hunter bullet.

If you are shooting a 7 SAUM with a 21-22in barrel please share your velocity, powder and bullet weight.

Has anyone done a load work up with N560 rl-23 or imr 4955 with the 143s?

 

[MarkTheFark]

Has anyone done a load work up with N560 rl-23 or imr 4955 with the 143s?

I use RL-23 for a lot of different bullets/loads in my SAUM, but for the 143 HH specifically, using H-4350 gave me more speed and better consistency...3150fps in my 22" barrel.

 

[Eman1982]

My next build will be a 7 SAUM around the 143g Hammer Hunter bullet.

If you are shooting a 7 SAUM with a 21-22in barrel please share your velocity, powder and bullet weight.

Has anyone done a load work up with N560 rl-23 or imr 4955 with the 143s

I use RL-23 for a lot of different bullets/loads in my SAUM, but for the 143 HH specifically, using H-4350 gave me more speed and better consistency...3150fps in my 22" barrel.

Lol thanks for not answering my qs

 

[Slick8]

No hammers yet but I'm running a 21 inch barrel, H1k and 180 Hybrids at 2800.

 

[MarkTheFark]

Lol thanks for not answering my qs

Yes, terrible of me to offer some firsthand experience that was relevant to your question (I did develop with RL-23 that you asked about) and potentially helpful (offering an alternative to consider).

 

[JAYgs8163]

Has anyone done a load work up with N560 rl-23 or imr 4955 with the 143s?

No, I have not!

 

[SPK512]

Hey all,
New to the forum here, but been reading it forever.

I have build an 18" barrel 7 Saum, Sammi chamber.

Thought I would post my loads here as I get them so other could compare.


So far I have only used h4350 to develop.
162 gr ELDM
Coal 2.913
55.1 grains of H-4350
2720 fps and 1/2 MOA groups at 100 and 200 yards.

Should be able to put some at 3 and 400 yards in the next week.

Also have some other powders to try out to see if there are any gains.

 

[SPK512]

No, I have not!

I have N560 on the way, it will be in my next round of testing.

 

[Eman1982]

Yes, terrible of me to offer some firsthand experience that was relevant to your question (I did develop with RL-23 that you asked about) and potentially helpful (offering an alternative to consider).

I apologize for coming off rude. Thanks for your recommendation on the H4350. I was able to pick up 8lbs, i will be giving it a go.

 

[Longtine88]

I have N560 on the way, it will be in my next round of testing.

N560 and n565 was made for it. Those work great in the saum