Load development - 7SAUM and WMR powder

[JGSFAB]

Obscure powder but I was left 50ish lbs of it.
Extremely fine ball powder 4831 speed, 5 kernels = 0.1gn
22in 8twist Shillen barrel, M98 FN mauser, custom chassis. Decided I'd try some more heat so today's ladder...
Exact numbers 2798,2855,2845
I ran 5 at 62gn (trickled) 36fps ES.
Same 5 at 62gn powder thrower 50fps ES.

Could not detect any pressure signs at 64gn.
3.090 COAL

Read More

 

[Steel Head]

With a 22" barrel 2850 is pretty decent speed.

 

[helives]

Good results! I wonder if you'll see some temp sensitivity with that powder.

 

[JGSFAB]

Good results! I wonder if you'll see some temp sensitivity with that powder.

Probably... the new Athlon chrono will show.
I feel like it was supposed to be a 4831 in ball form.

 

[JGSFAB]

Today's shooting session.
I was also shooting the same barrel chambered in 7PRC (7PRC AW2 chamber) , Hornady Match and got around 2875. Who needs 7 PRC?