So someone had the idea to set the scope up on a solid base, and use the remote to take pics as the unit went through temperature changes. These pictures are horrifying.. I had set it up on my deck first, with the scope coming from a 60'ish safe to about 30 degrees outside. Scope cooled for about 30 mins then I decided I should have done it on the concrete pad, so moved it and started over. These pics are all from the concrete pad. It was in the shade before I moved it, so the first pic is with it in the sun again, and somewhat in the middle of the 'head' of the IPSC target at 85 yds. At 11:59 on the clock I put a box to the side to give it shade.. Total movement is a bit over 7" at 85 yds. UGLY! Don't know what I'm going to do..