Well got back from gun shop and the bloke pointed out to me that 1 of the 2 mounts had a anti recoil screw wound down but there was no recess for it pushing the mount out and not sitting flush in the dove tails. So scope off screw wound out put back together and zeroed at his range at 109 yards / 100 meters need to check it tomorrow at diffrent ranges hope it had done job as could do with out the expense