Ive been shooting a Nikon Monarch 4-16x42 on an AR15 223 for the last few yrs and really love it. I recently got a Swarovski and put it on a 6mm and am struggling with it. I cant seem to get a clear view and if I move slightly the reticle bounces everywhere! whereas the Monarch is clear from the get-go and seems very constant. With the swaro Ive gone thru 50 rounds of 6mm just trying to get it at 1.5" high at 100yd... in fact my hits seem to be all over the target, no 2 holes are within 3" of each other. I had no problem with sighting in my 223 with very few rounds. What am I doing wrong and how do it correct the problem?