Winchester magnum rifle powder

[victor3ranger]

Has anyone ever loaded with this stuff?
I know it's discontinued but is it any good?

 

[Hickory1991]

Don't know but I have 3 unopened lbs of it. Bought it fairly reasonable years ago but just have not tried it.

 

[MagnumManiac]

Yes, it is the same as 780/Supreme 780. Excellent in belted mags. I still have about 10lbs and used it in 25-06, 257/270/300 Bee, 300WM & 264WM.

Cheers.

 

[victor3ranger]

Yes, it is the same as 780/Supreme 780. Excellent in belted mags. I still have about 10lbs and used it in 25-06, 257/270/300 Bee, 300WM & 264WM.

Cheers.

Do you still have the load data for those calibers?
I have a chance to buy 3 of the 8lb jugs unopened

 

[victor3ranger]

Also, how temperature stable is this powder?

 

[MagnumManiac]

Do you still have the load data for those calibers?
I have a chance to buy 3 of the 8lb jugs unopened

I do have it somewhere. I will look at let you know.
The temp stability is about the same as all Winchester ball powders.
I never had any issues with it, my climate is about the same as South Africa, but I will say I had to drop ALL charges by a grain when I hunted northern Australia.
Funny thing is, nearly all magnum cartridges loaded by Winchester run bulk 780 powder…

Cheers.

 

[victor3ranger]

I do have it somewhere. I will look at let you know.
The temp stability is about the same as all Winchester ball powders.
I never had any issues with it, my climate is about the same as South Africa, but I will say I had to drop ALL charges by a grain when I hunted northern Australia.
Funny thing is, nearly all magnum cartridges loaded by Winchester run bulk 780 powder…

Cheers.

Very good information thank you
Any data you can come up with for 7 Remington mag or 300 win mag would be helpful

 

[victor3ranger]

Well, I hope I'm not going to be disappointed in this stuff because I bought all 3 8lb cans of it

 

[MagnumManiac]

Had a look for you.
300WM
180g, min 69g-max 77g
200g, min 67g-max 75g
7RM
160g, min 64g-max 68g
175g, min 60g-mx 63g

Hope this helps.

Cheers.

 

[victor3ranger]

Thank you
I bought 3 8lb jugs of it today so I'm nervous about not getting enough information about it