I have a few buddies that I consider to be "average" hunters. By this I mean, they don't know how to sight in their deer rifles, and only shoot their rifles at targets a few times a year, and they have me sight them in for them. These guys can not shoot a deer past 150 yards with a solid rest, jerk the triggers, etc. These fellas are all excellent shots with shotguns, but they just don't have the self control or discipline to be a long range shooter. About 2 years ago, one of these buddies approached me, and made it clear that he wanted to be as good of a shot as me at longer distances, and he was asking for help. I sent him to the gun shop when he had the funds available, had him pick up a Ruger 10/22 (my favorite 22) and a good scope. We grabbed a few bricks of ammo, I taught him how to zero it in, and told him to start practicing. That fall when it came time to sight in his deer rifle, he did it himself and shot 3 shots into 1" at 100 yards. He was grinning ear to ear. I took him out deer hunting one evening after he got off work, and he had a doe tag and a buck tag. A doe stepped out of some willows at 289 yards, I told him to practice all we had worked on in the off season, he squeezed the trigger, and the doe fell dead in her tracks.

So I guess what I'm saying, if you want to get good at longer ranges, start small and work your way up. Now, this buddy and I shoot all the time (we loaded 750rds of 243 ammo up a few weeks ago), and we set 2 Liter, 1 Liter, 20 ounce, gallon, etc jugs at 300 yards and we bust them all in 1 shot shooting from the prone position using our backpacks as a rest.