all of the gravel pits out here are no shooting because rat bastards were shooting up loaders and leaving brass and shot up cans, TVs, Tires, ETC... the last time I shot in a gravel pit I got to deal with a county deputy who was actually pretty sympathetic since he saw we were picking up our brass and "targets" but still had to make us leave. I only have an 80 yard range out my back yard which is fine for pistols but not great for rifles unless I just want to do a 25 yard navy style shoot. I have to pay if I want to go beyond that and even then the longest range I have is 550 yards(500 meters).
EDIT: I see you're getting your 1903A4 and M1 ready for elk season