Before the laser type came out I used the split image style rangefinder, specifically the Ranging 50. I found it to be very good for bowhunting ranges IF you keep it in good calibration. A change of 15 degrees would cause mine to be as much as 5 yds off. I had a large "X" on a piece of paper tacked to the side of my shed and a marker at 25 yds that I would use to set it everyday and it usually needed a slight fine adjustment everyday.