i have an excalibar , they sell their own it has the reticle marked off in 20 , 30 , 40 , 50 yds.
works great , depends on the speed of the bow i would think for it to be accurate at all the ranges
look on thier website excalibar crossbows
deerhunter, I don't know much about retiicle scopes for crossbows but if it is not right on then somthing is wrong.
How old is it?
Has it been droped?
Has it been loaned?
How long since you went through and made shure that everything was tight?
One trick is to use the lowest seting that you can, and still see the dot keeping the dot (MOA) as small as posible.
My red dot is right on and I realy like it.