Magnum primers with W-780 powder?

Doodlebugger45 · October 12, 2010, 11:23 AM

I was thinking about trying some Winchester Supreme 780 powder for .243 loads. I haven't used this powder before and the only load data I can find is at the Hodgdon site. They are not specific about what primer they use in their data. I recall that you are supposed to use magnum primers with ball powders such as 760, so I am assuming the same thing goes for 780. It just seemed kind of weird to be reaching for the magnum primers for the .243, so I just delayed and loaded a few rounds with H-4350 instead until I could get more guidance.

October 12, 2010, 11:23 AM	#1
Doodlebugger45 Senior Member Join Date: April 15, 2009 Location: Wyoming Posts: 1,717	Magnum primers with W-780 powder? I was thinking about trying some Winchester Supreme 780 powder for .243 loads. I haven't used this powder before and the only load data I can find is at the Hodgdon site. They are not specific about what primer they use in their data. I recall that you are supposed to use magnum primers with ball powders such as 760, so I am assuming the same thing goes for 780. It just seemed kind of weird to be reaching for the magnum primers for the .243, so I just delayed and loaded a few rounds with H-4350 instead until I could get more guidance.