.338/.378 WBY MAG Reloading Question

[L1A1]

I am reloading some .338/.378 shell and I have a few different weight bullets. I can find data for the 200 Gr. up to 250 Gr. in my Nosler #6 manual. I have some 275 Gr. bullets that I want to load for bench shooting just to see how it performs. I can't seem to find any data for a 275 Gr. for any .338 shell.

Using H1000 Powder - Have had good results with this powder, but I would buy whatever powder needed to ... Git Er Dun.

For my Ruger #1

Anyone have any info - I would greatly appreciate any help.

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[BigBull 301]

<broken link removed>
Here you go.

 

[mjbskwim]

And there is a reload section on here that might get you more answers

 

[L1A1]

Got it - Thanks for the info !