My vote goes to the 1915 Chauchat machine gun. My first reason is if I had not heard someone pronounce it, I would be at a loss. My next reason is that this thing was actually issued to American troops and was designed for war. A person would be lucky to get a full clip fed through the thing in 2 hours. None of the parts would interchange. It would break apart if used as a club. The effective range of the 8X50R Lebel was 2100 yards - if it would shoot. If it overheated it would stop firing until cooled. Thank goodness the US Army sent over BAR's to equip the boys in the trenches.