Was loading up to head to range today, rifle leaned against tail gate, dog runs over and knocks my rifle over onto.....concrete. Lands on windage turret bolt knob and brake. Scopes mounted in a M-brace all screws trq'd to 55"/#, shifted 0.9mil left, held perfect vertical. I don't know what to say. 23# of rifle weight landing on turret. Spun the dog shit left and right, up and down, it rtz and tracked properly to 400y after side impact and a rezero. Ive had this happen to a nx8 and it shifted too, and that rifle only weighed 8.5#