Regarding 007's question it is exit 38 on I-90, after you get off (from eastbound) follow the road past the national park until you see a forrest service road on the right (9020 i think) then follow the road up past iron horse state park and there is a road that goes off to the right (there is a shot up toyota by the side) follow the road until it comes to a gate, open the gate then about 2 mi past that.
Regarding the dents, not sure myself, the G3 wasn't shooting the brass very far (the ones that didn't him my truck) definatly not the 40 feet described by some other members however the gun was only shot from abou 5-6 feet away. Also there were two shells next to my truck inline with the dents which lead me to the assumption they were from the G3. You can't tell by the picture but there is a chip in the dent by the cab. Finally the side of my truck, to me, seems softer then the sides of most trucks, this could have contributed to the unusually large dents