Seen very few of these over decades. Marlin's attempt to capitalize in respect of rifles more powerful than it's contemporary 336 lever group & before the 444/1895 series era. Many other established FN bolt rifles on the market and proprietary micro rifling lacking 'wow' factor. A late fifties product to recollection. Decade or so later, reinventing their levers in large format indicated, a much better idea of doing it well in their own marketing backyard. The 455 a good rifle falling into "also ran".
Concerning the suggested 8mm06 alteration, REALLY STRANG! Moreover, to my thought, considerably devaluing the rifle! Small audience of a. reloaders, b. imbued with that chambering!
Best & Stay Safe
Last edited by iskra; 10/03/20.