7 SAUM load data

[Londerko]

I was messing arround with Gordans Reloading Tool today while I'm waiting for my ADG brass…..
Had a few interesting findings comparing H1000, RL26 and N565. Near max Pressure with a 180 hybrid and an OAL of 3.010 and 22" barrel:

RL 26 is 96.8% fill and 100% burn
H1000 is 107.9% fill and only 98.3% burn
N565 is 101% fill and 100% burn

All 3 where within 10fps of 2860fps projected

 

[Longtine88]

Curious what RL23 and 560 showed

 

[Londerko]

Curious what RL23 and 560 showed

Both are showing complete burn but lower velocities than H1000, RL26 and N656.
Thinking RL23 and N560 mite be paired perfectly for the 168vld and 162eld

RL23: 97% fill 100% burn 2782fps
N560: 98% fill 100% burn 2817fps

 

[Longtine88]

That's nuts cause I found higher velocity in 3 different rifles using N560 over N565. RL 26 is the highest velocity I've found

 

[Londerko]

That's nuts cause I found higher velocity in 3 different rifles using N560 over N565. RL 26 is the highest velocity I've found

Real world results are all that really matters
Good to know

 

[CoryJames]

Anyone running a real short 16-18 inch 7 saum, and are pushing the 190 class bullets like the atips?
Curious if you can get them moving fast enough with rl26 to run that heavy of a bullet on such a short barrel.
With rl26 my 300wsm pushed the 180gr at 2950-3000 fps

 

[Londerko]

Shot my 7 SAUM at 100yds yesterday:
New ADG Brass, 180 Berger Hybrids loaded to 3.010. 215 primer H1000
64grs looks promising, chrono crapped out so I don't have velocities out of my 22.5 barrel, 4 shot groups

 

[CoryJames]

Speed?

 

[Londerko]

Speed?

Chrono crapped out So I won't have velocities until next trip
But my guess with 64gr is 2875

 

[Londerko]

Shot my 7 SAUM at 100yds yesterday:
New ADG Brass, 180 Berger Hybrids loaded to 3.010. 215 primer H1000
64grs looks promising, chrono crapped out so I don't have velocities out of my 22.5 barrel, 4 shot groups

Shot this load over the magnetospeed this morning, 38 degrees out:
1: 2831 fps
2: 2836 fps
3: 2833 fps
AVG: 2833 fps
SD: 2.4

 

[RedsideMT]

Following along, waiting for my 20" 7SAUM carbon 6 barrel to get finished up. I've got a few powders to try imr7828sc and just managed to snag 1lb of RL26 on powder valley the other day. I've been looking for N565 with no luck.

Going to start with 155gr Hammers.

Thanks for all the good load info, can't wait to get started.

 

[southpa]

Following along, waiting for my 20" 7SAUM carbon 6 barrel to get finished up. I've got a few powders to try imr7828sc and just managed to snag 1lb of RL26 on powder valley the other day. I've been looking for N565 with no luck.

Going to start with 155gr Hammers.

Thanks for all the good load info, can't wait to get started.

Reviving. Anything to report?

 

[8andbait]

I'm trying N565 now with 162 eldx.
This is my 5th 7 saum and the other 4 liked rl26 or rl23. This one is not very consistent so far with either of those two powders so I'm trying N565.
I thought it would be slow after seeing the results of other people but so far I'm pleasantly surprised with the results.
I only have access to 300 yards which isn't ideal.

More testing scheduled…

 

[D$tring]

Mine is only about 50 shots in, and still speeding up. 21 inch barrel, using 166 grain Atips in ADG brass, fed 215m primers, getting 2890 with 61.5 grains of h4831sc. And shooting nice tight little groups. Still verifying nodes and working out to distance waiting for the speed to level off to finalize load. I am loving this round and this build.