Half a century ago 10X was considered a hefty dose of power for a varminter.
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So I went to the local Cabela’s to buy a low-power variable and discovered that all the scopes that ran from 1X or thereabouts to 5X or thereabouts were sold, and what was sitting in the case, lonely and forsaken, were the big scopes with interstellar power ranges, suitable for tactical shooters, prairie dog hunters, and folks of that sort. It was a reminder that there is still a strong streak of common sense in the hunting public that cannot be kept down.
I got my start as a woodchuck hunter, which meant I wallowed around in the high end of the magnification range, and I can remember that half a century ago 10X was considered a hefty dose of power for a varminter. The most powerful scopes you could get were made by Lyman and Unertl, and the biggest of those ran in powers like 12X and 15X with the Unertl Programer being the champ at 24X. No one ever used anything over 6X for big game.