Loads for 6.5 SAUM 4S

[30cal user]

you will end up around 61.5 gr w/ 26" bbl, so start lower

 

[XTREM HTR16]

6.5 SAUM medium weight hunter built by Moon at Crescent Customs. Load data:

Bartlien #4 8 twist, 23''
103rds fired
Virgin ADG brass
Fed 210M
60.2gr N570
Berger 156 EOL
BTO: 2.225
2912fps
SD: 8.8

Barrel still needs to settle in a bit and I expect velocity to speed up 40-60fps. Target is the head of a 100% IPSC.

View attachment 8636537

Very nice, how are you liking the ADG brass compared to the old RP 300 SAUM brass necked down?

 

[jonthomps]

Very nice, how are you liking the ADG brass compared to the old RP 300 SAUM brass necked down?

I like the ADG brass so far. Bought 200. We'll see how they hold up. I'll never complain about the cost because it's nothing compared to buying RP and sending it to Copper Creek to have the necks turned!!

Ahh the good ole days.

 

[XTREM HTR16]

I like the ADG brass so far. Bought 200. We'll see how they hold up. I'll never complain about the cost because it's nothing compared to buying RP and sending it to Copper Creek to have the necks turned!!

Ahh the good ole days.

Yeah I was lucky. @Sendero_Man took pity on me and sold me some prepped R-P!

 

[Earnhardt]

Jonthomps and XTREM HTR 16,

what freebore reamer was/were used on your chambers? .081”?

Thanks

 

[Earnhardt]

I'm a mac guy. Can someone run QL for the following specs:

6.5 SAUM
ADG brass
N570
Beger 156 EOL
COAL: 2.915

Wondering what optimal and max charge are in ADG brass with that COAL. Thanks in advance.

How much N570 in your load?

Edit… I just saw you are looking for the Max amount of powder to use…
Thanks

 

[XTREM HTR16]

Jonthomps and XTREM HTR 16,

what freebore reamer was/were used on your chambers? .081”?

Thanks

Yes sir.

 

[Earnhardt]

Yes sir.

You by chance haven’t shot any hornady 140 or 123ELD‘s out of that have you? With that .081” free bore?
If so, do you remember what your COAL was? Thanks.

 

[Earnhardt]

I'm a mac guy. Can someone run QL for the following specs:

6.5 SAUM
ADG brass
N570
Beger 156 EOL
COAL: 2.915

Wondering what optimal and max charge are in ADG brass with that COAL. Thanks in advance.

Quickloads says
with a 2.915" COAL,
a 23" barrel
and with 63.2 grains of N570, you will be at 102% fill (so your powder will be crunchin'...)

Max Psi for the 6.5 SAUM is 65,000

It states the pressure with a 156 Berger and 63.2 grains of N570 your 6.5 SAUM pressure will be 58,800 psi
and the velocity will be 2910

Thanks

 

[XTREM HTR16]

You by chance haven’t shot any hornady 140 or 123ELD‘s out of that have you? With that .081” free bore?
If so, do you remember what your COAL was? Thanks.

I have not. But I do have a box of the 140’s, could try a few to see where they hit the lands.

 

[Earnhardt]

I have not. But I do have a box of the 140’s, could try a few to see where they hit the lands.

My 6.5 SAUM has a 28” barrel, but I used a reamer that had .170”freebore.
It is lights out accurate, with the 123, 140 and 147 ELDs. But I seem to be getting “sporadic” meaurement when I am checking for bullet jump…

I’m thinking about building a 6.5 SAUM AR, on a LR308 large frame, so I am trying to figure out what reamer freebore I need, to work with the 140 ELDs, to fit into a PMAG.

Thanks

 

[jonthomps]

Jonthomps and XTREM HTR 16,

what freebore reamer was/were used on your chambers? .081”?

Thanks

Yep - .081. I've had several SAUM's built by GAP and Moon. I've always used the shorter .081 freebore. Has always worked great for me.

 

[jonthomps]

Quickloads says
with a 2.915" COAL,
a 23" barrel
and with 63.2 grains of N570, you will be at 102% fill (so your powder will be crunchin'...)

Max Psi for the 6.5 SAUM is 65,000

It states the pressure with a 156 Berger and 63.2 grains of N570 your 6.5 SAUM pressure will be 58,800 psi
and the velocity will be 2910

Thanks

Perfect - exactly what I was looking for. Much appreciated sir!