IBO Speed 315-320??

[802moneymike76]

i own a 08 cheetah and would like to know how martin rated this bow at 320 fps at 30" draw when the max draw length is 29". can anybody explain this?

[razorjack]

i own a 08 cheetah and would like to know how martin rated this bow at 320 fps at 30" draw when the max draw length is 29". can anybody explain this?

UUMMM i seen that too,must be a typo,heck if they used a 29 DL to achieve that speed thats even better,it still is a sweet shooter hands down.

[scepterman30x]

UUMMM i seen that too,must be a typo,heck if they used a 29 DL to achieve that speed thats even better,it still is a sweet shooter hands down.

Usually they revert to just using the 5 grains per pound of draw weight and use that figure...or they could just add approximatly 10 fps to account for the 1" in draw. However I believe it is the former that they use.