Jack O’Connor didn’t invent the .270 Winchester, but he might as well have done so, because for more than 30 years he carried on a one-man cam­paign that transformed the .270 into one of the most ...
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This story was originally published in the April 1989 issue of Outdoor Life. Jack O’Connor didn’t invent the .270 Winchester, but he might as well have done so, because for more than 30 years he ...