My late brother worked up a series of targets based on open black squares similar to the aiming point on a BR target, but in various sizes to accomodate different scooe magnifications and reticles. The open center allows you to quarter it easily. The smaller the square, the more that fit on a standard sheet of paper. He also added thin, horizontal lines to show elevarion in inches; +1, +2, etc. I run off copies at Staples as needed. These are good for sighting in and accuracy testing, but I use round bullseyes for practice.
