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Old December 29, 2019, 03:00 PM   #192
Senior Member
Join Date: June 17, 2010
Location: Virginia
Posts: 5,682
Increasing start pressure first raises -- then lowers -- velocity as available energy is eaten up.
Going all the way through/to 60,000psi-start never saw velocity rise out of the 1,900's.

Remember also, whatever this condition was it caused two successive shots at near exact same velocity.
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