This is my view point:
I am an NRA certified RSO, former Chief RSO, at my R/P club. Also, NRA certified Muzzleloading Instructor. I shoot muzzle loading rifles and pistols at my NRA affiliated range. RSO's control the firing line at all times. During "cease firing', all shooters leave their empty firearm on the bench. Modern firearms have the action open, showing an empty chamber, pointed down range. Muzzleloaders can be left safely leaning against the bench with muzzle pointed up, unloaded or laying on the bench, unloaded, muzzle pointed down range.
Once the cease fire is called, everyone stands away from the benches. It is safe to go down range to change or post targets. Only after all have returned to the area behind the firing line is the command to "commence fire". Then all can return to the bench and handle firearms.
The RSO on duty will check with the M/ler to be sure the firearm is empty. (There aren't too many of us.) This is for cease fire.
This club has been in existence for over 50 years. It has a new lease for another 50 years. NRA range inspectors visit and inspect our range, making suggestions on range safety improvements, if needed. The club, at one time, had open land behind the safety berms. Now we have industrial parks around us.
With flintlocks, I try to get a position on the far-right side of the line, so I don't burn anyone with the flame and flash from the pan. If I have a shooter to my right, I give them a warning so they can stand clear of the touch hole blast.
At the club, we run a program call NRA Women on Target. A few dependable RSO's who shoot m/lers, introduce the ladies to the wonderful world of black powder rifles. We have them shoot at clay birds on a backer board. Clay birds get broken and the smiles that appear are priceless.