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Main Boards => PowWow => Topic started by: slowbowjoe on August 09, 2012, 08:30:00 PM

Title: Spine, GPP, and bow poundage question
Post by: slowbowjoe on August 09, 2012, 08:30:00 PM
I'm shooting right about 45# @ 27.5" out of a quick r/d longbow. Factoring in FF string, design, and near to center cut, I'm getting good arrow flight with 50/55 spine, 28.5" BOP, and 125 grain points.

My question is about figuring GPP for the set up: do I base the figure on the actual 45" weight, or add poundage to the equation as with figuring correct spine?

Thanks up front for the feedback!
Title: Re: Spine, GPP, and bow poundage question
Post by: swampthing on August 09, 2012, 08:43:00 PM
It is based on your draw weight.
Title: Re: Spine, GPP, and bow poundage question
Post by: Tomas on August 09, 2012, 11:00:00 PM
It's your actual draw weight divide by weight of the arrow in grains.
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