I have a suggestion and I subscribe to grens post #69. Set your phone camera up to video you pulling the trigger with live rounds. If you like to yank off a box or more get a creedmoor. A gun like that will kill your timing and form shooting a box of twenty. I also bet that bullet will settle down as it nears 300 plus meters. Save your brass and I might make the 2.5 hour trip over there to visit one day and we can figure something out.