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Old May 22nd, 2009, 04:42   #7
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Join Date: Jun 2002
Location: Toronto
SNK's got the nail on the head. The chart doesn't say what velocity you WILL get if you use a certain spring.

All it says is, "this is how much of a difference you'll get compared to this *other* spring you tested with."

As for the energy calculation formula, this is it:

(velocity/3.3) X weight of BB / 2,000 = Energy in Joules
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