30-378 weatherby powder recommendation

I was looking at the h50bmg. Doesn't show the greatest speed in the manuals but has a good case fill. Nosler only shows 84-85% case fill with re33 and retumbo with a 200 but I guess a slower powder might need the longer barrel to digest it? Has anyone tried n570?
 
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I did but only asked about the n570. All they had on it was QL info. Really appreciate all the responses. Thank you all
 
I shoot N570 exclusively in mine, with 220 ELD-x's, 100 grains at 3100 FPS with SD's @ 3.
N565 will be close too, but a tad slower in burn rate than H1000
Very temp stable.
 
Thank you. Berger put QL info at 106 max @3117 with 91% case fill. I see Hornady has they're 208 eldm @ 3200 with 33 and 869. I thought n570 was really close to 33 in burn rate ? And same with LRT?
 
I'm on the west side near mt Rainier so probably wait to see how the other powders do. Really wish I had better brass to work with. Might tell him to sell the Hornady and try and find some more Norma or weatherby brass but he's pretty bummed out so I might try and work with it. Crazy how far off it is
 

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