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Single bevel vs. double bevel

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WhistlingBadger:
Again, thanks for the input, guys.  I'm going to have to get some single bevels, in addition to upping my arrow weight.

One thing I wonder about.  I fletch my arrows with wild turkey feathers, and I use both left and right wing.  I've never seen a bit of difference in how they fly, but I have to admit I'm not crazy about having to buy (and keep track of) left and right beveled heads.   I could just fletch all my hunting arrows left and save the right wings for targets and bunnies.  But what I really like to do is make all my arrows the same, and put broadheads on the best-flying ones right before hunting season.

That's about the only advantage I'm seeing for double bevel.  That, and I already have some.  ha ha

Hawkdancer:
I don't have enough bow hunting experience to state a point of view, but I have heard from other hunter that Cape Buffalo are rather tough to stop!  Got to finish the batch of saw blade
trade points waiting in the work space - single bevel for right wing this time. 
Hawkdancer

Tommy D:
You have to match the bevel to the fletch so that the spin on the arrow in flight and the induced twist that the arrow creates as it goes through bone are in the same direction. Otherwise you are wasting energy spinning and arrow one way in flight and then it goes the other way once it hits bone. Having said that, I suspect so long as your arrows are tuned and the bevel of each arrow head matches the fletch, I doubt you fill notice much difference at hunting ranges whether you shoot all left bevel, all right bevel or a mixture of both. But given bevelled broad heads are more expensive than feathers I would just pick one or the other and stick to it. I have used the Grizzlies and they are tough as nails and pretty reasonably priced. The Tuffhead website has all of Ashby’s articles in one place. He actually shoots a straight fletch for himself I believe. He is very big on weight forward of center arrows. This in itself puts less onus on the fletching to stabilise the arrows. If you are in any doubt about the effectiveness of single bevels this is a pretty good video. https://m.youtube.com/watch?v=BGxWyCQ1lWM.

Remember - there are other more important things for arrow penetration than single vs double bevel - weight, shaft and head toughness and integrity and forward of center arrows of 19% or higher - but there is no downside as I see it to a single bevel - and I have seen it with my own eyes - so I am a full believer.

https://www.ashbybowhunting.org/

In case you are wondering ... I am in no way affiliated with any of this ... I just think that it is an incredible resource for responsible bow hunters to make use of

Little John:
I don't know about better penetration but am convinced that the single bevels cut better if spinning the proper direction.

Tommy D:
I was wondering whether any of the English “warbow” guys have ever measure old English arrows for High FOC; I enjoyed Ashby’s article on the heavier tipped arrows being preferred in Papua New Guinea. I can’t help but think that trial and error would have led an armour piercing arrow design to the same conclusion?

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