Main Discussion Area > Flight Bows
Adam Karpowicz - Closing in on the Half Mile
avcase:
FYI, Adam recently reported chronograph test results with this bow. With a 223.3 grain arrow (same weight as used for his 790m shot), he recorded 404 fps with a Dacron string, and 436 fps with a fast-flite string. The bow stores about 160 ft-lb of energy in the draw, so efficiency is approaching 60% for the fast flight string. A top notch linen string would fall somewhere between the performance of the Dacron string and fast flite string. That is really moving for a natural materials bow!
Even more impressive is that the bow has survived numerous test shots without blowing up.
Alan
Badger:
That is an amazing distance he got with that arrow. That style has always been my worst flyers. Maybe all that extra speed works well with it. I am pretty sure it greatly enhanced the arrows spine. His efficiency for less than 1.5 grains per pound is astounding!
Badger:
How far is he drawing the bow to store 160# energy??
avcase:
It is 27.5” draw at 175# draw weight. That’s a lot of energy!
Alan
PatM:
Has the weight climbed 50 pounds?
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