I shoot .22 rimfire ammunition quite extensively on my range out back. When you go out beyond 100 yards with a .22 rifle you're stretching the limitations of guns and ammunition. Albeit, it might be fun to do, but there are "forces" working against those little bullets that are beyond control.
I agree with the above statement. Sight your rifle in, with your "specific" brand of .22 rimfire ammunition at, say 25 yards, or some distance you choose. Then, shoot at 20, 50, 60, 75, 90 yards with the same point of aim you held at 25 yards. You will soon find out exactly what the drop/rise involved at those distances will be for your chosen combination. Heck, shooting is much more fun than sitting in front of a computer screen and trying to calculate what may not be accurate.