It depends on the base, the CO and history of the base.
I know of a few bases that have really nice trap, skeet and/or sporting clays spaces and there on their own time, soldiers are allowed to shoot private weapons. Same with some that have competition style ranges for high power or pistol.
As far as carry on base, when I went on base to shoot, as a civilian I was required to leave my CCW at the gate with the MP as personal sidearms were not allowed per the CO, However as a guest on base invited to shoot at the ranges, my long guns were perfectly accepted. I had to enter and leave via a proscribed gate and I had to be on the list before hand. Just showing up and driving on base was not going to happen. NOTE this was several years ago. Current post 9-11 rules may apply. I was shooting at the Hook ranges at Benning.
I know of a few bases that have really nice trap, skeet and/or sporting clays spaces and there on their own time, soldiers are allowed to shoot private weapons. Same with some that have competition style ranges for high power or pistol.
As far as carry on base, when I went on base to shoot, as a civilian I was required to leave my CCW at the gate with the MP as personal sidearms were not allowed per the CO, However as a guest on base invited to shoot at the ranges, my long guns were perfectly accepted. I had to enter and leave via a proscribed gate and I had to be on the list before hand. Just showing up and driving on base was not going to happen. NOTE this was several years ago. Current post 9-11 rules may apply. I was shooting at the Hook ranges at Benning.