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Old 02-24-2008, 06:37 PM
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M77man
 
Join Date: Dec 2006
Posts: 518
Default Calculate my fps w/o chrono

I have an 08 Diamond Black Ice and the birth cert states 298 fps with a 350 grain arrow at 70# and 29 inch dl.

My arrows should be in the neighborhood of 365 grains at 65# and a 28 inch dl.

How fast should it be shooting then? I'm going to get it through a chrono eventually but it would be nice to anticipate probably what it will be shooting.

Thanks
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