Peel, what you have here is a great start! Here's a few more common-sense safety rules most private clubs have adopted that apply to scattergunnin' :
*Keep actions OPEN AT ALL TIMES (for pumps & semi's slide the bolt back so you can see an empty chamber). All actions should be opened as soon as guns are uncased. O/U & SxS break-actions should be broken open as soon as they leave the vehicle upon your arrival and again at the gun rack and carried into the shooting cage/station OPEN. While in the rack, O/U and SxS may remain closed. As soon as you pick them up out of the gun rack, they get pointed in a safe direction (usually the ground) & broken OPEN. When finished shooting, make the gun "safe" by opening the action PRIOR to leaving the cage / shooting station. A shotgun with a closed action is an invitation to trouble. A loaded shotgun with an open action is bound to happen at an event such as this. If it's loaded & OPEN, you can still break another rule & not kill anybody
*Observe the "Muzzle-UP Rule" when playing "Show & Tell". Nobody gets "swept" that way as we check-out each others "toyz". Show & Tell with muzzles pointed in a safe direction (preferably DOWN RANGE instead of towards parking lot while arriving shooters are looking for parking spaces).
Mentors watch their guests shoot & assist as necessary, they don't shoot simultaneously. This way the experienced Mentors keep a better eye on muzzle control & eliminate "sweeping". And everybody goes home with the same number of holes they started with .
Special note for Clinton WMA: The new gun racks they built don't allow the shotguns to "lean enough" on a windy day. The wind can blow-over your expensive scattergun ONTO CONCRETE, so I recommend the use of a blanket on the ground (or your gun case) with all muzzles pointed DOWN RANGE. Less damage to guns that way (yes I've seen it myself and it happened to Steve, a member here).
Rosey
NRA Chief Range Safety Officer