Hahahahaha ! It's just dawned on me, and this is something I never even suspected could happen - so I never bothered to check, - Zeroing indoors at 45 mtrs was a bit hit and miss if you know what I mean (TX200/Hawke Varmint II). One on the bull, next one to the right, next one more to the right...hmmm.. adjust ! On the bull again, next shot to the right etc, etc. Then I saw the light ! The windage turret was actually clicking itself to the right during the recoil of shot, and more again on the next shot. I'm just wondering if I should cough up for a bushnell 10x40 or fill the windage turret with epoxy ? What did I really expect for 89 quid ?