Here's the problem when you go high tech for long range hunting.
You're glassing with your binoculars and suddenly you spot a great looking game animal. So you switch to your high powered spotting scope to evaluate the antlers or whatever the trophy indicator is on the animal. Then if you decide you might want to shoot that animal you go to the rangefinder to find the range and if it's one of the new high tech rangefinders you go to your iPhone app to find out exact hold over.
Now it's time to adjust the reticle on your scope but while you were fiddling with all your gadgets the animal got tired of waiting on you and moved on... LOL
This morning I killed a very nice whitetail who was chasing a doe all over my food plot and the surrounding woods. He finally paused at about 200 yards out to gaze suspiciously at me in my box stand. I'll never know why unless he had previously seen another hunter entering or leaving that stand another day.
Anyway... I got my scope on him quickly knowing he would get back to the doe soon and he was standing in dappled shade which made evaluating his antlers very difficult especially because he was staring directly at me. I cranked up the power on the scope and got him centered and just as I did he turned broadside to me and I got a flash of good antlers and decided he was a shooter. BUT!!!
Even if I didn't have to fiddle with rangefinders etc. I was really pressed for time to evaluate and get a bullet launched at him. I ended up hurrying my shot and he was rapidly disappearing stage right. I got a shot off as he was moving and picking up speed and although I had pretty good confidence in my aim and hold he disappeared. <sigh>
20 minutes later I found him in some fairly thick brush. He had gone about 30-40 yards with a heart turned to jello. That was some tough buck.
My point is if he'd been 300 yards or further (I zero at 200) I'd have never been able to evaluate, range, get ready and shoot before he got back to the business of breeding that cute little doe.
I know that true long range hunting often is done in more open conditions and often you have more time but sometimes not.
I guess all this is why it's called hunting and not shooting? I also guess that sometimes you have to ignore the technology and go "old school". LOL