nice spud gun up there....mine needs a new ignition. what do you use to power it?

and about the range.....it depends on the potato. i have the end of the barrel filed down to a point so i just smack a potato down on it and it cuts a nice potato plug. i've found, for some reason, the red skinned ones work alot better. according to the rangefinder i usually get them 110-130 yards.