need help load data for 7x64

[1 good shot]

none of my manual even list it
i have the horady,sierra and speer
i'm wanting to load some 139 sst's and i've sent an email to hornady but they haven't responded

 

[Plateau Hunter]

I would use .280 Remington data starting with beginning loads and work up. The 7x64 has a grain or so more case capacity than the .280 so the .280 data should be a great starting place.

 

[1 good shot]

I would use .280 Remington data starting with beginning loads and work up. The 7x64 has a grain or so more case capacity than the .280 so the .280 data should be a great starting place.

that's what i was thinking i was going to have to do