Technically, it's a 50-yard BZO "sight-in" and a 200-yard ZERO. Accordingly, a true zero at 200 yards will get you well within government work at 50 yards.
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Technically, it's a 50-yard BZO "sight-in" and a 200-yard ZERO. Accordingly, a true zero at 200 yards will get you well within government work at 50 yards.