Question About Arrow Weight Distribution

G2 Shooter · 05-25-2005, 08:12 AM

So we know what the IBO and AMO weight of arrows should be in proportion to draw weight. My question is, does it make a difference where that weight is distributed? For example: If you're shooting a 350gr arrow out of a bow set at 70# draw weight, that is 5gr/inch. If the broadhead weighs 125 grains, the arrow shaft is only 225 grains. Will that shaft take more punishment than a 250 grain shaft with a 100 grain broadhead? Let's asume that both shafts are properly spined carbon shafts and the only difference is weight.

I am not using the responses to guide my arrow selection. I was just thinking about this the other day and am curious.

Gundigest · 05-25-2005, 08:19 AM

Go to the Gold Tip website www.goldtip.com/calculators/foc.asp and put in your information and it will tell you what your FOC (front of center) is and you will know what weight head you should be using for your arrow. Your FOC should be between 8 and 12%.

G2 Shooter · 05-25-2005, 08:28 AM

Sorry, I forgot to say I was not worried about FOC but thanks for the reply Gundigest. I was just curious if the energy transfered to a lighter shaft is more detrimental than to a heavier shaft when the total weight of both arrows is the same.

mainehunt · 05-25-2005, 08:55 AM

Excellent question G2,
I never thought of it that way before.

BUT..........I don't have an answer either[:@]

98Redline · 05-26-2005, 04:21 AM

Given that the bow is properly tuned, the energy imparted to the arrow is applied directly in line with the arrow shaft. In essence all the bow knows of the arrow is what it sees at the nock end. So the answer to your question, is no, the KE impated by the bow is a function of the total arrow weight, regardless of where that weight is distributed. If you had a way to guide it, you could conciveably shoot a 350gr bullet off of your bow string and get the same KE as well.

Now arrow flight is something different.