I am shooting a 60# bowtech gaurdian. The IBO is 321-329 I believe. I was trying to figure out how many FPS I loose shooting 60# ?
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Originally posted by KarlGansen View PostA lot goes into that question, you will be around 299 fps if you have a 30" draw
Here is a good calculator
http://www.backcountrybowhunting.com/articles/calc/
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Originally posted by KarlGansen View PostA lot goes into that question, you will be around 299 fps if you have a 30" draw
Here is a good calculator
http://www.backcountrybowhunting.com/articles/calc/
Comment
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The guardian was a good shooting bow. I had two of them. With out knowing you specs. A 70 lb bow shooting a 350 gn arrow will lose about 10fps dropping to 60 lbs if still shooting the 350 gn arrow. If you drop to a 300 gn arrow you will loose around 2 to 4 fps. I just used the ibo arrow weight as a reference only. If speed bothers you don't shoot the guardian through a coronagraph. Just shoot and have fun.
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Your looking at about +/-2 fps per pound of draw weight added, or lowered, aprx +/-3 fps per 10grains of weight subtracted or added to your arrow and +/- 10fps per inch of draw length increased or decreased.
I would say your speed loss will be between 15 to 20 fps going from 70#'s to 60#'s. Just my opinions and observations.
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Originally posted by KarlGansen View PostA lot goes into that question, you will be around 299 fps if you have a 30" draw
Here is a good calculator
http://www.backcountrybowhunting.com/articles/calc/
Comment
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