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Mike,

I have that bullet in my work-in-progress BTB QuickLOAD file. What are your objectives? Velocity, pressure limit, etc.? 54 grains of Varget looks like about 80% case fill, 42,000 psi and over 2200 fps from a 24" tube. Ballistic efficiency is close to Hatcher's promised land of 30% for high power rifles. Should be a good combination. You'll probably want to work it up with magnum primers to pressurize the big case well.
 
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