Weeeelllllll... In my opinion, a couple things "could" contribute to the "wandering zero" myth.. Perhaps not allowing for significant cool down before taking a follow up shot (remember the No5 nas a shoter barrel) ... shooter error, or maybe it truely is a manufacture defect. If you can sit at the range and site it in with a fair amount of cool down time between each shot, then I'd say it's a myth that can be debuncked...
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