Last year I mounted a new Z3 Swarovski 4-12x50 on a Weatherby Fibermark 7mm wby. The first 2 bullets out of a cold barrel at 100 yards were touching. I cranked it up 1.5 high and that group same result but they were just a tad further apart but still way better then I had anticipated. I put it down to cool and fired my other guns and then I went home and cleaned it . I went back to the range 2 weeks later and it was a 1 foot group and that is being kind. No w/e adjustment would do a thing as far as POI, it went back to Swaro and they replaced a spring . It went back to the range and it was its old
self. I sold it after hunting season ended.
