HuntingNet.com Forums - View Single Post - Formulas for IBO & AMO.
Thread: Formulas for IBO & AMO.
View Single Post
Old 02-02-2002 | 03:18 PM
  #3  
arrowsmit
Typical Buck
 
Joined: Feb 2003
Posts: 811
Likes: 0
From: Hopkinsville, Ky USA
Default RE: Formulas for IBO & AMO.
AMO standard is 60# @ 30" w/a 540 gr arrow. That translates into 9 gr per #. IBO is 5 gr per pound: 60# @ 30" w/a 300 gr arrow. Those used to be the standards, I'm not sure if they've changed...
arrowsmit is offline  
Reply
0