Arrowhead barrel on a Remington 700 action. Leupold 4.5-14 mil dot. all wrapped up in a Magpul stock. Have to use the magazine to keep the module from dropping out. Target is sighting it in at 100. Using 300 grain XLD over IMR4198. First shot is 1 oclock. Next two were after adjustment was made. Going to be going out and tuning it up here in the next week or so.