ORIGINAL: KodiakArcher
You've got to be kidding right? Broadhead sharpness and KE have NOTHING to do with each other. I don't care how much KE you're shooting you need to be shooting the sharpest broadhead you can. Dull broadheads don't cut, they plow and they'll plow elastic veins and arteries right out of their way without cutting them. You need a sharp head to make a quick, humane kill, unless you're going for a head shot...[:'(]
Not kidding at all. Like I said - I smashed a muzzy practice head right through the boiler room on a broadside doe - dead in seconds. Complete pass-through. (Accidentally pulled the wrong arrow out of the quiver) Dull broadheads have EVERYTHING to do with KE.
I've killed deer with heads as dull as a butter knife. When I was a kid, I was too broke to afford replacements, so we hunted with 'em until they were destroyed or lost. Good shots always did the job.
Not that scalpel-sharp blades won't help (they will) - but they're just another part of the equation, like everything else.
Pretty simple, really. Run a butterknife over your bare skin at 3 fps. Now run it over your skin at 250 fps. It'll rip right through the skin. It's all about the speed and pressure behind it. If you have energy to burn, a dull blade won't make a lick of difference.