Loads for 6.5 SAUM 4S
- Thread starter Bob L Swagger
- Start date
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.
How much N570 in your load?
Edit… I just saw you are looking for the Max amount of powder to use…
Thanks
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.
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
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
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.
Perfect - exactly what I was looking for. Much appreciated sir!
