I am somewhat perplexed as to the use of the "Alaskan" designation. "Alaskan" means the use of a .348 Winchester casing as originally named by Harold Johnson of Johnson Kenai Rifles. He used this naming in the .450 Alaskan & .50 Alaskan using the .348WW case. It is not a standard .45/70 or longer standard .505" base dia brass. .348's are .545" in base measurement, not .505" as are .45/70's, therefore they cannot be fired in .450 Alaskan chambers. That would be dangerous as the .45/70's are .040" undersize in the head dia, even though the rims are the same dia.
: Is the round you speak of the .457 Wild West ctg?
: Designations of wildcats are quite meaningful, but easily & wrongfully misplaced on other rounds.
: I'm not trying to cause any trouble - just to get the proper names used to limit misunderstandings.
: If the maker of these big bore Marlins is using the Alaskan name because it sounds 'cool' for advertizing, it's being used improperly and well, that's most unfortunate - shame on them - IF, that's the case here.