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Old 01-26-2010, 09:13 AM
edlmann edlmann is offline
Join Date: Oct 2009
Location: lovely downtown Central Florida
Posts: 5,269

Originally Posted by VMFn542bob View Post
I haven't a clue how they would have measured velocity back then, when those old MANN barrels in the photo were tested.
Back before the development of the modern chronograph, I believe velocity was tested by firing a projectile at a swinging pendulum of a known weight at a known distance. High speed photography would measure how far the pendulum was moved and the velocity computed from that.

Prior to Oehler's chronograph, a lot of inaccurate velocity estimates were in print.
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