The best scope for me is a Tasco 2.5x10x50mm Mil-Dot rifle scope. It's perfect on my Tenpoint Titan TL-7 165# crossbow using a 450gr. arrow shooting about 265fps. The dots are 15 , 20 , 25 , 30 , 35 and 40 yards. I like the 5 yards apart dots so I can be very accurate on the shots. The scope was under $80.00