I had the cases fly up and bounce off the ramada or the ceiling in a indoor range. The case would bounce off the ceiling for example then sometimes they bounce off of the side wall and wack me on the left side.
My 45-70 pistol was notorious for shaking the dirt and dust off of the ramada or ceiling too. Sometimes a small wasp nest as well. Nothing like the first shot of the day and you get a mini-avalanche of dust and dirt on your head.