kinetic energy

[mtnjim]

we've all heard the speed arguments.

what may be more important and seems to be increasingly recognized is kinetic energy of the arrow.

how is is calculated?

is there a minimum KE to strive for?

what other considerations about KE should be recognized?

mtnjim

[agingcrossbower]

Here is a place that can calculate KE. http://archeryhq.com/ke-calculator

To me Ke is a plus for arrows shot at or under 30yds for punching power. After that a person relys more on speed and gives up KE to get a flatter trajactory to make up for yardage errors. My two cents.

[mtnjim]

found another calculator here:

http://www.dewclawarchery.com/Kinetic_E ... -a/157.htm

[roly]

I shoot a farely light arrow at 357 gr total weight

At 30 yds and under I rely totally on speed, any thing in front of my arrow should be a blow through.

At 30 yds and out is when I would start to worry about KE.
My fast little arrow slows down very fast so KE is now a big factor

But thats JMSO

[vixenmaster]

Fps,KE & Momentem is the name of the speed game. Hey fast Models sell so get the fastest one of the big pounders you can cock. I did, mine is one of the fastest Vixens they made, its such a lovely day & i am watching the Sun slowly rising! Its very fast like my Vixen

[Limbs and Sticks]

First of all one only needs 45lbs of ke to pass thru a deer, at 350fps my 350grs sticks have 94.6lbs of ke and at 40yds impact is a couple inches lower than at 30yds, you need speed to make ke even with the heavy weights.

Wes

[sumner4991]

I'm not a speed freak, I'm a KE freak.

You got to watch the KE when using the larger cut broadheads, they do take a little more energy to get a complete pass through.

However, the energy produced by these crossbows is more than enough. Just add weight until you get what you want.

I like for my broadheads to stop within 30 yards after passing through a deer. That way, I don't have to extend my search into the next state when looking for my arrow. I hunt from the ground.