A friend recently advocated his theory about the .410 in today’s America. He believed that as our wingshooting population ages it will find preserve hunting increasingly attractive. Knees and ankles not quite as sturdy in the rutted fields of South Dakota? That extra 25 pounds of belly fat making your Wyoming high country bird hunt more strenuous than you last remembered? Old eyes causing those explosive flushes to get away? Packing ibuprofen in the vest pocket next to your shotgun shells?