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Old 02-20-2003 | 05:53 AM
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PABowhntr
Boone & Crockett
 
Joined: Feb 2003
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From: Lehigh County PA USA
Default RE: 348 FPS?

Bow poundage wont do a thing for x-tra speed if you remain at 5gr. per. pound.
Krisken,

I do not mean to be argumentative but this is not necessarily a true statement. For example....

A 60 lb bow shooting a 300 grain arrow might have a hypothetical speed of 260 fps. Then, lets look at the same hypothetical bow shooting at 70 lbs with a 350 grain arrow. When you increase bow poundage you will have an average gain of approximately 1.75 fps for each pound of draw weight. That would mean a speed increase of 17.5 fps for the 10 pound difference in draw weight. But since you are increasing arrow weight by 50 grains to keep the ratio at 5 grains per pound you also need to subtract approximately 10 fps. If we combine the two figures then that results in a net gain of approximately 7.5 fps by increasing draw weight by 10 lbs while maintaining the 5 grains per pound of draw weight ratio.

A more accurate statement might be that increasing draw weight doesn' t offer a significant amount of additional speed if the person maintains a 5 grains per pound of draw weight ratio.

I did not want to seem like I was lecturing but this is a commonly misunderstood issue.
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