Primitive Archer
Main Discussion Area => Shooting and Hunting => Topic started by: bigcountry on June 20, 2008, 10:34:53 pm
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Is this normal. I am relatively new to the selfbow scene. I have built one osage and building another. I also one someone in Wa State built for me. All of them, I need spines 12lbs or lower than the wieght. I have to shoot 40-43lb spine POC with 125gr tip with my 54lb osage that is almost centershot. And have to shoot the same 43-45lb spine out of another one I built that is pretty far from centershot and is 57lb bow. I also tested out with 1816 alums and need 200gr head with a 30" arrow to shoot well out of my 54lb osage.
They fly good, don't burn up as far as speed. But I hit where I am aiming. I just wonder if I have a bad release or these are typical numbers.
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It is actually fairly normal for a long bow to need spine 10# under bow weight. The center shot one should not be as bad. This tells me that the bow you built is probably a little more efficient. The center shot bow probably has a lower string tension at brace. Justin