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Bowfanatic,you are definately in the minority.Most anyone that has used carbon on game will attest to the penetrating avnantages.The ones that havn't had good results were most likely due to a poorly built arrow or poorly tuned bow.


I am going to disagree that you can gain ke at the bow by going to a lighter arrow.If the arrows are tuned at both weights and the poundage isn't changed(or draw length) then a light arrow will not gain enough fps to increase ke.It just isn't possible,unless there is a tune issue.Maybe fletching contact issues or something that is off on the bow.
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I dont think I'm in the minority when I say there is no proof that carbon penetrates game better than alluminum with a well placed shot. I'm currently shooting Beman ICS hunters. Last year I shot XX78's in the early season and GT 5575's for second season. My kinetic energy between the two was a wash , but both were complete pass throughs on does. Should I have measured how far each one stuck in the ground?<img src=icon_smile_wink.gif border=0 align=middle> Thats the point I'm trying to make. With a properly setup and spined arrow , with a properly tuned bow , either will penetrate game effectively.
Lets talk about non pass throughs. I have hit deer in the shoulder blade with alluminums and carbons. Recovered them all , and neither arrow penetrated better from what I could tell and all of them busted.
I think the best test for penetration I've seen is on hogs. If I remember right , I think there was an article somewhere that talked about penetration on hogs between a 65lb compound bow with carbon arrows and a 45lb or 55lb (not sure which) recurve shooting cedar shafts and the recurve out penetrated every time.

Just so you dont think I'm a liar about increasing my kinetic energy by going to a lighter carbon arrow and gaining speed without changing anything else , I'll see if I can dig up the math , I keep records of all setup changes , and dont expect much , the last time I think I gained like 2 lbs of kinetic energy.