Bucky, I did not stutter. I did not say to keep all things equal. Here's what I said, "Everyone can choose a KE that will work for them by tweaking their arrow weight and speed."
Sometimes you have to read the whole post before you jump to rediculous conclusions. Thourough reading and comprehension will help you understand.
Tweaking speed: most bows have an adjustable weight range. If you want to keep your velocity up, but use a heavier arrow, you must increase the poundage of your bow. A few pounds may get you where you want to be. Hence the term "tweaking". I wouldn't suggest tweaking the draw length unless you are trying to obtain the proper fit. If you need a better explaination of this, let me know.
Once again...NOT apples to oranges, poor reading and comprehension leads to mass confusion.
Inever said that you stuttered.... I said your comparison is no good and invalid. Everyone cannot just choose a KE "that works for them" and tweak their arrow weight and speed to attain it.
For example "Johnny" has his bow set at 70 pounds shooting 275 feet per second with 67 ft lb KE. How in the hell is he going to "tweak" his bow to shoot that 500 grain arrow the same speed??????
Hello...... Does your comparison make sense now???? NO, it doesn't. There was no misreading or incomprehension...... I see through your BS comparison and pointed out it is a null point. It is unattainable.
Even if "Johnny" had his bow set at 60 pounds, shooting 400 grain arrows at275 feet per second with 67 ft lb KE and he cranked his bow all the way up to 70 pounds............ his bowSTILL wouldn't produce theenergy to push the said 500 grain arrow 275 feet per second. At 60 pounds he would be firing that 500 grain arrow around 240 feet per second. By cranking his draw weight all the way up to 70 poundshe would produce atbest 20 FPS out of his rig...... Leaving him WELL shot of the 275 feet per second you suggested in your post.
Once again your comparison is no good and tomuch of an exaggeration to even be taken half way seriously.
Now what was that I said....... Oh yes, Apples & Oranges.....
The bowling ball/ ping pong ball quote is mine. It was a gross exageration to show a point. If you keep the velocity the same for the 400 gr arrow and the 500 gr arrow, the difference is big.... not irrelevant. Both arrows @275 fps, 400 gr. = 67 ft-lbs KE and the 500 gr arrow =83 ft-lbs KE. For a difference of 16 ft-lbs KE. The momentum of the heavy arrow (bowling ball) will carry it through the target easier than the light arrow (ping pong ball). Even though I can't explain why, I believe that even with both arrows being the same KE, The heavier arrow will carry through the target easier than the lighter arrow. Due to other characteristics, momentum, stiffness to name a couple. BTW, 65 ft-lbs should blast through a deer, 70 would work even better etc. Everyone can choose a KE that will work for them by tweaking their arrow weight and speed. It is usually better to error on the heavy side. I learned from my mistake.... I've shot through the thin part of the shoulder blade with a slower, heavier arrow and not penetrated with a lighter faster one. With the chance of an off hit, the heavy one wins more than the light one.