Need help with momentum calculation

bigcountry25 · 04-13-2005, 07:14 PM

I don't know how to calculate momentum and need some help and also what an execptable range of momentum?
I am shoting a 372.4gr arrow with an average speed of 305fps that calculates to 77lbs of KE. I am shooting a Bowtech Allegiance 29" draw and 70lb pull with 28.5" Carbon Express CX300 3D selects with a 100gr tip fletched with 3 blazer vanes.

Dairy King · 04-13-2005, 07:57 PM

Maybe I'm wrong, but isnt that a little light of an arrow?

bigcountry25 · 04-13-2005, 08:24 PM

Yeah it's lighter than I have used in the past but it is over the ibo of 5gr\lb or 350gr. I have weight tubes ordered but I don't know if I will mess with them or not because I am shooting better with this setup than I have in the past few years.

Arthur P · 04-14-2005, 07:39 AM

I do my momentum calculations the easy way. I go to Jackson's website and plug my numbers into his ballistics program.