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arrow weight vs length vs spine vs foc.

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arrow weight vs length vs spine vs foc.

Old 05-22-2022, 01:36 AM
  #1  
Spike
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Default arrow weight vs length vs spine vs foc.

Hi all .. I'm currently shooting a Kryptik Redhead single cam 75lb ..the shafts I've just setup are gold tip hunters 340sp cut to 27 1/4" with 2"blazers 100gn head total arrow weight is 388.4gn with 18.5% foc..what are your thoughts on the hunting capabilities of this setup and on the arrow setup itself..cheers
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Old 05-22-2022, 02:09 AM
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Frankly, I think your arrows are too light. 75# is a heavy bow but I think your penetration will suffer. Kenetic energy is great, but momentum is your friend.
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Old 05-22-2022, 01:08 PM
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Spike
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Originally Posted by Wingbone
Frankly, I think your arrows are too light. 75# is a heavy bow but I think your penetration will suffer. Kenetic energy is great, but momentum is your friend.
I sort of agree .. I believe the shafts are a little light but the foc seems wrong. I used 2different calculators on the internet and got 2very different answers..18.5 and 9.75 foc.. I the smaller is mor likely hence I'm going to 125gn heads.
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Old 05-25-2022, 11:54 AM
  #4  
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Originally Posted by Wingbone
Frankly, I think your arrows are too light. 75# is a heavy bow but I think your penetration will suffer. Kenetic energy is great, but momentum is your friend.
although you meet the minimum IBO arrow weight for your draw weight I too believe your total arrow weight is too light. I'd opt for an arrow around 450 gr total. Your bow will be quieter and will be under less stress with the heavier arrow. Probably shoot better too.
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Old 07-20-2022, 06:52 PM
  #5  
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I think the previous posters were correct and you'll be far better off with a minimum of a 7.5 grain per lb of bow draw weight and a 300-400 spine, but read the charts and get the correct spine weight, and don't try to use overly short arrows or fletching thats not sufficient to rapidly stabilize the arrows, check your game department laws
its been proven consistently in testing that the ideal broadhead DESIGN
should be approximately three times its diameter or blade width,
in length, and fixed blade generally out perform mechanicals
and blades should ideally be at least 1.125" in diameter or blade width,
at the widest point to maximize penetration and lethal damage

https://www.gohunt.com/read/how-to-s...rrow#gs.fdfj15

https://www.advancedhunter.com/arrow-selection/

https://www.3riversarchery.com/pdf/ArrowCharts.pdf

http://patnorrisarchery.com/arrow-ch...ip-Chart-2.jpg

Last edited by hardcastonly; 08-01-2022 at 01:52 PM.
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Old 08-02-2023, 09:17 AM
  #6  
Spike
 
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Overall, your setup seems well-balanced and capable of effectively taking down game. However, keep in mind that a successful hunt also depends on your shooting skills, shot placement, and familiarity with your gear. Make sure to practice regularly and become confident with your setup before going hunting. Additionally, always adhere to local hunting regulations and ethical practices to ensure a responsible and safe hunting experience. Happy hunting!
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Old 11-23-2023, 10:08 AM
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I think that when you shoot the bow kenetic energy is your best friend
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