The other night while at a local shop I decided to zip a couple arrows out of my Allegiance through the chrono. I was absolutely dumb founded to see speeds of 272 and 274 out of this thing. All numbers I ran showed me in the ball park of 285 - 290 out of this setup. My buddy PAHardwoods Old Glory was getting low 290's from the same chrono, which he and I figured would be right around his speed.

My setup when shot through the chrono was:

Bowtech Allegiance
28" draw
63lbs
gold tip xt hunter 5575 at 27"
100gr point

String had hush kit, string loop and fletcher tru-peep. No brass nock.


Here is what I don't get. My BC was 305 for this bow. Thats a 350 gr arrow at 70lbs. My current arrows weigh in around 376. Thats only 26 grains over what it was tested at. I realized the original shop scale was wrong and did put a full turn in my limbs to get the poundage up. But I really don't see that making that big of a difference.

Where did I lose so much speed at?