Thread: subsonic rounds
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Old March 24, 2013, 09:22 AM   #7
Jimro
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Join Date: October 18, 2006
Posts: 7,097
Try this method with trail boss.

http://www.imrpowder.com/PDF/Trail-Boss-data.pdf

You may need a heavier bullet to get down to the velocities you really want.

Jimro
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