338 rum, IMR 7828ssc, and 300gr SMKs

[Elgin]

Anyone out there using 7828ssc to push 300gr SMKs in a 338 ultra mag?

I have a couple of pounds of the 7828ssc (and can't find any Retumbo or H1000), so I thought I'd try it out, but I can't find any data on this combo anywhere.

Maybe this is just a bad idea? I'm new to reloading, so I apologize up front if it is.

 

[jwrowland77]

All I see on Hodgdon website is a listing for 7828 up to a 275gr pill.


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[Elgin]

Was just checking that out. Maybe I just need to go with the 250 SMKs.

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