In 1977, kicked out of a pickup truck in the dark on the east pasture of a Wyoming ranch. 83,000 acres pasture I had never laid eyes on the place in my life day pack with water and a sandwich, box of 130 grain 270 Hornady soft points I'd loaded two weeks ago. Remington 700. Redfield 3-9x40. When it turned daylight I said shi@. Had no idea how to shoot the distance I was seeing antelope. My 1st experience in wide open range. To cut this short I was able to see a nice buck about half mile away. Saw the only tree in sight was near him.got into dry wash and ran to the point where the tree was .left my pack in the wash and climbed out beside the tree. Looked every where. No antelope. Turned to slide back in the wash and he was behind me. Luckily, facing away. Back in the ditch. Went another hundred yards and climbed out to the edge. Only to discover it was false edge. Belly crawled another twenty yardsand peeked over the edge. There he was 150 yards away. Still mounted on the living room. 15.7 inch length. Never had him scored.
A trip in early 80's into Wy. First time hunting antelope. (The buck I took) Buck was with a doe, and bedded down with the world in his view. I was about a 1.25 miles away. i figure I could close the distance. Moved over to a deep ditch and worked my way to where he at. Closed that distance down to about 500yds. I had to do some low crawling to close that distance, and was afraid I was going to be spotted. I had done a lot of shooting with the rifle I was using. 721 rem in a 25/06, 22" barrel. with a 2x7 Leupold duplex scope. I had set up several years before that to learn how to range animal at deer size out to 500yds.
Determine that the buck was at about 500yds. Laying down on the ground and holding myself up on my elbows. Set to make the shot. One thing I hadn't realize that he was laying down and not sitting up. Place the shot and made the shot. The dust below up around him, and made me think I was low. By then I had chamber another round and took up aim again. The doe that was with him ran up the hill, he move towards lower ground there. In my second shot, I noted that was a red spot on his side where his heart should be. I missed my 2nd shot, but noted that the red spot was back to his hiden leg. He drop over by that time.
I had hit him in the heart, but didn't realize was when he was hit, it make him jump and his leg kit up the dust, not my bullet being low.
That all comes from knowing my rifle and how to range using my scope, and shooting paper at different ranges. Part of it is I never missed at those ranges. I have missed at closer ranges, but nothing at that distances. That was from learning how that rifle shots at different yardages, and to where to place the scope on the target or animal. At that time I didn't have a chronographs either. I have a couple of them now.
So much for those range finders at that time. Today range finders are different story. So there more than one ways to skin a cat. You do need to know your rifle and how the bullet fly down ranges. Without that you might as well throw rocks at them.
With Chrongraphs sure cut down on what your bullet is doing going down range. I'll add that if your bullet are on the same desgn and the velocity are about the same. The flight of those are all about the same. So I try and keep my rifes that I use in that velocity range. That way I don't have to remember where to hold that rifle at a give distance.
Nothing against having a dail-up-scope to do the work for you
. I have one now, but I going to extend my range out to about 750yds, so I feel that a better scope is needed.