Powder(s) for 340 weatherby

[lechero]

What does Nosler use in the custom ammo?
I'm trying to expand beyond IMR4831.

 

[FOTIS]

I can not speak for Nosler but these will work.

h4831
rl22
rl19
rl25

 

[JD338]

I can not speak for Nosler but these will work.

h4831
rl22
rl19
rl25

+1 to what Pop said. I would start with RL-22. :wink:

JD338

 

[RiverRider]

RL22 is very good powder and I am sure the other Alliant offerings are too, but it's temperature sensitive. I got very good results with it in .280 Remington during load development but dropped it over the temperature sensitivity issue. A good friend also used it in a .30-cal belted magnum and got very good results during load development, but found that when the temperature dropped 50 dgrees F he lost about 175 fps. That does little to boost confidence. It's a real shame!

Personally, I would stick with Hodgdon and Ramshot. Ramshot Magnum and H1000 would be the first powders I would try, but that's just me.

 

[FOTIS]

Welcome to the forum River....Glad to have you.

 

[RiverRider]

Thank you, Pop. And thanks for your help the other day when I could not validate my registration!

 

[FOTIS]

Anytime sir.