I have just used one today on a .223 Remington 700 club gun, at 100 yards, and in 18mph gusts. It feels a little cheaply made, but it did the job after I got her zeroed. To be fair to it, the club guns are usually abused by new starters not knowing what they’re doing, so they tend to twist the turrets in any direction hoping that will fix their missed shot problem which ultimately, is down to their inexperience. The fact that this little scope re-zeroed and held zero after being messed about with by all and sundry suggests that they’re not bad for the money, despite feeling a little cheap. Not sure how this would fair on a larger caliber, but it can certainly handle .223/5.56mm.