ORIGINAL: mobowhuntr
I don't know of any bow today producing 100% KE....are you refering to 100 ft lbs?
No, sir. Take my set up for instance. I pull only 67 pounds, but I am producing 73 pounds of KE....that's something like.....113% I think....
Ah, I see....at 70 lbs I'm producing 80 ft lbs.... but you see, I cannot tell you the last time my arrow passed completely through an animal. I have entrance and exit holes but not arrow sticking behind the animal. Actually, it was before my ACC's....they weigh in at 381 including the 100 grain head. A heavier arrow will slow my bow but my KE will remain the same however the heavier arrow will have better penetration. I've killed 5 bucks with these arrows out of two different bows, no complete pass throughs, again exit wounds but the arrow remained in the animal.
There is a good reason for heavier arrows.