450240 is the constant that is used for calculating KE for an arrow

so
KE = m*v squared/450240


it is recommended that you set up so that you acheive a minimum of 55 ft./lbs for taking deer w/mechanical broadheads and 41 ft./lbs for fixed blade broadheads. so light arrows heavey arrows....do the math and if fit into the KE range for your broadhead then you're fine





Edited by - nodose on 12/31/2002 13:55:43