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Author Topic: weight tubes vs weight upfront.  (Read 261 times)

Offline maxfit

  • Trad Bowhunter
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  • Posts: 396
weight tubes vs weight upfront.
« on: March 07, 2008, 12:13:00 PM »
What is the differnce between a Beman mfx 400 29 3/4" with a 5gr.(150 gr) per inch insert and 125 grain head.  Or the same arrow with the same added wieght upfront? 100 grain insert and 175 gr head. (instead of wieght tube)
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Lu 11:21  When a strong man armed keepeth his palace, his goods are in peace:

Offline TJ Jones

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  • Posts: 64
Re: weight tubes vs weight upfront.
« Reply #1 on: March 07, 2008, 12:30:00 PM »
The weight tube doesn't affect the spine of the arrow and will probably lower the FOC.  275grs up front will weaken the spine of the arrow and increase the FOC. Alot of data is indicating gains in penetration with high to extreme FOC.
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Offline Chad R

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  • Posts: 179
Re: weight tubes vs weight upfront.
« Reply #2 on: March 07, 2008, 01:07:00 PM »
with weight up front you also eliminate problems with the tube popping the nock out.
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Offline Otto

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  • Posts: 1020
Re: weight tubes vs weight upfront.
« Reply #3 on: March 07, 2008, 01:12:00 PM »
The weight tube WILL weaken the dynamic spine of the arrow, but just a tad.  Maybe 3-5 lbs max.  It won't have NEARLY the effect of added weight up front though.
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Otto
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