ORIGINAL: PABowhntr
Mike,
Now why didn't you just ask me when you were down at the shop the other day?

I tend to use the figures that Zak posted. They will get you close to the speed you attain out of the chrono. You going to be down on Thursday? I have to sight in and chrono the Old Glory.
Why? Not sure. Too many other things running around my head I guess. I was estimating the speeds by my chrono speed of the ultra mag I owned against the rated ibo. It was about 46fps less which calculated seem right on.
I think Pauls advise was about the best I could ask for. Shoot what I like and don't worry about the speed.
I have put more thought into what new sight and bow to get then I did with my last 2 trucks. Something just does not seem right about that.