While I haven’t owned as many pistols as John, I’ve owned closer to 100 than to 50. I’ve never had a pistol 6” off in elevation from the factory. I have had that in windage on one pistol where the front sight hadn’t been centered in the dovetail. Also similar to John the pistols I owned that came with adjustable sights were the most off. I can believe this happened, just my experience doesn’t indicate it is at all common. I could just be lucky, though that would be a first.
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