A bit rough and rule of thumb but working backwards assuming a BC of .36 for your round and a your drop of 48 in at 500yds the Speer reloading manual gives a MV between 3000 and 3100. It's a guess but may be in the ball park.
A bit rough and rule of thumb but working backwards assuming a BC of .36 for your round and a your drop of 48 in at 500yds the Speer reloading manual gives a MV between 3000 and 3100. It's a guess but may be in the ball park.
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