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Tip Weight/Spine

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DC:
In my quest for light arrows I'm playing with tip weight. If I reduce the tip weight by 25gr I can take 5# spine out of the arrow. Same dynamic spine and the arrow still flies nice and makes the arrow maybe 30gr lighter. Then I can do it again. Another 30gr etc. Obviously there is going to be a point where this goes bad. Is it when the FOC moves too far back?

Pat B:
25gr lighter tip weight will increase spine value by 5#. Lighter tip make spine stiffer.
 Spined arrows shafts are sold as if they were a 28" finished arrow with a 125gr tip.  ie. shafts with an indicated 50 to 55# spine weight are to be used as a 50 to 55# spined, 28" arrow with 125gr point. Any changes to tip weight or arrow length will change the effective spine value.

Danzn Bar:
 Seems like I've heard you say that before Pat....
 ;D ;)

DC:
That's what I said. If I take 25gr off the tip it makes the arrow 5# stiffer so I can reduce the spine by 5#. Yes he has said it before and I think he misunderstood me then too.

Pat B:
Yes, I guess I misread what you wrote.

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