RE: HOW TO JUDGE SHOOTING DISTANCE
Only advice I could give would be exactly what stubblejumper shared-everytime I get a new rifle I go out and measure off 25 yards and shoot until I can be 10-10 in the bullseye-then I move it out 75 yards and do the same-finally I go 150 yards and do the same. Keep in mind I am a slow learner so that is why I do it that way