Okay, okay, okay, guys.... Four Bore it is... Darn it... I guess I needed a little gentle persuasion from the guys here to help me see the light... I already have many .730 or so diameter shotguns so a Blunderbuss in about the same bore diameter would not be unique or ridiculously cool. So, now I have to determine if I choose 4 bore brass at ($425 PLUS shippin) $450 bucks or so verses ($215 PLUSD shipping) $240 for the steel... The brass certainly has advantages... But I really did not want to spend $900 bucks or so on this whole project. The brass barrel would most likely bring the total at that figure... I know when you start with a $450 barrel then begin to add locke, trigger, stock and the other parts and machining time to make a really terrific looking 4 bore Blunderbuss, the numbers will climb. The question I suppose is: Will the $210 difference in the cost of the barrel between steel and brass worth it?...