RE: IBO ratings..What a crock of .....
 

For the record,My last 4 Hoyts had NO problems reaching their advertised IBO ratings,aside from the normal losses due to a shorter than 30" draw.



My Ultratec gets 276 with a 300 grain arrow at 56#'s and a 28.75 measured amo draw length.I would say that is right on spec with a 308 fps ibo rated bow.