I am not sure what the prerequisite for a Magnum is but I would believe this is close. A huge piece of very old briar. I decided to first rusticate this piece and then I blasted it. The finish is very craggy and defined. A very unique finish and a joy to ponder. This piece has nice thick walls and it is a real hand full. Hand cut Ebonite mouthpiece w/Delrin tennon, hand made solid sterling silver fitment. Thank you very much for looking.