Rifle scope on crossbow?
 

I put a Nikon rifle scope on my Excal to gain some extra light gathering in low light conditions. I keep my shots under 25 yards so I'm not worried about having different reticles lines for ranges.
Anything I should be worried about by having a rifle scope on a crossbow?
Thanks

Spect you will do ok, i shoot an old 4x Banner on my Phoenix & Bushnell Elite 1.5x6. Never had any trouble out of them fer yrs. Parallax is at 100 yds so you must keep yer cheek weld same area