what do you mount it on? Melits on top of my cz452 .22lr , i only ever use subs so recoil isnt an issue , ill use it once or twice and it can be fine(acceptable) , then it can lose zero by 10" - 12" , each time ive tried to convince myself that if i rezero it , itll be ok , its time now that i need to get it sent back before the warranty is out , its a shame because i really like it when its working.Its the first time I have used NV gear, apart from a dabble with a old Russian unit a mate had back in the early 90's which wasn't good, I like, it havnt zerod it yet, had to shim the scope up at t