H110 is a better powder for the fastest loads in the .500 anyway. I use H110 in all the magnums - it is simply the best powder for a wide range of magnum cartridges.
I switched a long time ago from the Winchester powders because they kept deleting powders without any replacement. Hodgdon has them all - if there is a cartridge made you can find the best powder for it at Hodgdon!
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CREAMPIE ORAL