Get around anything enough, and you'll see failures yourself, as anything human made might. I've seen Manufacture defects lead to failures first hand on just about every optics company: Swarovski, Leica, Leopold, Steiner, Burris, etc. That won't prevent me from owning another, though I've seen these failures that cost people an expensive hunt and/or shot. I've also seen brand new FNs, Remingtons, CZs, Brownings, Winchesters, Weatherbys, and more come back with defects. Again, though these defects could have been, and some were, catastrophic, I'd still buy another. Run any new equipment thru its paces in a safe manner and you'll weed out any shortcomings and be able to correct(replace) it.