I just sighted in my 270 at 200 yards at a place with an indoor range that was 25 yards. They type the info into the computer and based on the ballistics, it tells them where to draw a red line on the target. Then you aim at the bulls eye, but are supposed to hit the red line which is less than an inch below the bulls-eye.

Is this a very reliable way to sight in a rifle? I am hunting in the am so I hope so. when i was done, i put a couple in a row right below the red line--that is the top of the hole was right below the line. Does this translate into a larger degree of error at 200 yards?

Also, why is the red line below the bulls eye? I thought that the bullet came out of the gun high and then begin dropping?