Re: Shooting a muzzleloader through chronograph
You do not need to change the distance, but beware the sabots. I simple duct tape a piece of plywood across the screen, and remove it to take the readings (cheap but effective). Also, you can break your sensors if you use the skyscreens. I either don't use them, or put uncooked spaghetti in the holes as guides. If you put a sabot into the metal supports for the skyscreens you can destroy the sensor.