Fur,
I had a stud of a deer at 115 yards in Illinois a few years back. He was a 250lb+ deer with 180+ inches of antler. I had a slower Ravin crossbow at the time (431 fps). I was proficient at 100 yards on 3-D targets. The deer never knew I was in the world and he was very much in love with the girls. I never raised my bow. I watched him for 20 minutes cut does like a quarter horse cuts cows, but he never got anywhere near what I felt like was my hunting range.

I just like to practice. It has paid off all of my life. >Moss

Nice work! I'm trying to do the same. Crossbow on a lead sled with a really good scope. I'm trying to hit a bullseye at 100 yards. As far as an ethical shot on a deer, I do not plan on pulling the trigger over 40 yards. I passed on 2 bucks last year at 50-60 yards. What is your arrow drop rate? How many feet per second? What type of arrow are you firing? How many grains. Are you using a chronograph?

I just re-read your post. Do you start at 20? I'm having a hard time sighting in at 20. I'm thinking about sighting in a 30 first and moving out to 40, 50, and then 80. Like I said, nice work!