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Have you considered a different bullet weight range to test?
A Barnes TSX won't expand at low velocity and if you could live with a +/- 5 grain window you could use the 115gr .257, 120gr 6.5, 110gr 6.8, 120gr 7mm, and 110gr .308. That is 5 different bullets of almost identical construction with varying diameters.
Just a thought.
ETA: Also, the lighter bullets won't require as much test media. I suspect a 300gr non expanding bullet will require alot of gel even at subsonic velocities.
Last edited by alorton; 10-09-2010 at 03:30 PM.
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