Single bevel....by eliminating half of the molecular metal mass under the edge peak (Triangle cut in half)...you exponentially structurally weaken that edges ability to retain that sharp edge under duress. With a dual bevel...you promote leaving a gradient of metal mass expanding equally outward from the sharpest edge peak ( like a full triangle )...meaning you leave great molecular mass structural integrity underneath that edge to assist it absorbing greater pressure..yet not deform. Dual edge or bevel is easily a much stronger structural situation. Edge retention is important...I stress that these mechanical strength advantages can easily be seen provided you are testing like metals.
To assume the rotation of the broadhead is magically beneficial...dead was dead from shot to dirt exactly within the same time span/average distance traveled in my testing on live animals. No documentable difference to lethality.
In the end...I spent more time/money to produce a dual bevel razor wire due to the durability factor being so much better. That is the ONLY documentable difference I could determine from my testing in difference of single or dual bevel...Edge Retention Capacity...
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