I've only shot three indoor shoots. If your a good shot at known distance, your half way there. Have fun and don't worry about it. Some indoor shoots, the targets are set up close enough together you can get a good idea of distance by using a target that you guessed correctly earlier. If you hit good, take a moment after the shot to study the distance to the target. This will give you a good reference on the other tergets. Oh ya, did I mention, (have fun)


Fred