ORIGINAL: Straightarrow
Hey Arthur, that is one cool device! Every bow shop I've ever been in, has a crony to measure speed, but none have ever had anything to measure force. I could see a company marketing something like this with a range on it to use as a guide to determine if your arrow had the force for killing particular animals. Plus is would be so easy to shoot at whatever distance you were hunting at. Talk about a device that would be a whole lot more useful than a crony!
It would be cool to be able to see the force of your arrow. However, I'm not sure using it to determine if your arrow has the force to kill a particular animal would be practical. Who and how do you determine that? I'm not being sarcastic about this. It's an honest question.
A very sharp broadhead on a light arrow out a slow bow can kill a lot of things. Ashby's main point had to do with what he considered penetration. To him, it was passing thru the medium. However, as long as you strike vitals you do not need to go thru the animal. Also, do you decide this by saying the arrow has to be able to go thru a shoulder blade on the entrance side of the animal? To me this is not a good shot and therefore, wouldn't be considered in my criteria.
Setting up a criteria like this would be almost impossible.
And Arthur, you beat me to the ballistic pendulum. It's been around for a long long time.