So I got some 30-06 ammo a few years ago. I got 2 bandoliers and a total of 11 loaded M1 Garand clips. The ammo is marked with L C 6 7 on the back. Om guessing that is Lake City 1967? Just want to make sure its not corrosive. It also has red lacquer around the primer. Im thinking of shooting up this ammo at the rifle match this weekend. Is that a good idea or would it be more wise to keep it?