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Looking through some charts on Easton and other webposts. On a given basis how much speed is loss for every 50 grains of weight added? The closest figure I could come to was between 6-9 fps for every 50? If you got a more specific answer please let me know.

Thanks in advance.
 

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In 'Da Head
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I always figure 1 fps for every 5 grains of arrow weight. At 50 grains, you would be around 10 fps. 5 g=1 fps has always been the closest for me, but I am sure this depends on the bow and where the added weight is coming from.
 

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This data is from the 2005 BowTech catalog.
Single Cam & Binary Cam = 1 f.p.s.lost for every 3 grains added arrow weight
Dual Cam = 1 f.p.s. lost for every 2 grains addded arrow weight.
50 divided by 3 = 16.66 f.p.s.
50 divided by 2 = 25 f.p.s.
Dave Nowlin
 
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