Bought the Vortex Crossfire 6-24x50IR, mounted it on a brand new Savage FP10 and began to dial it in. After 8 shots and not a mark on the target or cardboard from 100 yards, I had some help from a couple of excellent benchrest shooters and after 18 shots and no rounds on anything I took my SS 10x42 and mounted it on the FP10 and the first shot was 1 o'clock in the black. It didn't even work out of the box. E-mailed Vortex and will be sending it back for repair. I have 4 other scopes, 3 bushnell and one BSA, and haven't had problem one from any of them. Probably won't be sticking with Vortex anymore.