Bob, this is what I have on my x-bow. It has sighting points for 10-50 yards, in 10 yard increments. It works really, really well.

http://www.amazon.com/Excalibur-Varizone-2-4X32mm-Croswbow-Scope/dp/B000PWBBTW

www.hoosierpondpros.com


http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).