My ONLY choice would be not to shoot there.
You might not have another option. Until recently, there was ONE public range in the Cleveland area, and it's so dangerously unsupervised that I won't shoot there. If I wanted to have guns pointed at me, I'd go to Mosul... or Chicago. Recently, another has opened. Never been to it.
Fortunately, I belong to a private range which allows any safe ammunition.
Of course even the range I won't shoot at allows reloads. And given their inattention to what happens on the firing line, how would they know? If they don't notice three guys yelling at each other in Serbo-Croatian while wrestling over a loaded Remington 870, how would they see me shooting my 148gr. .38 DEWCs?
Wrong.
You limited yourself to a certain area, that is your choice, there are other choices, you simply chose it wasn't worth driving farther to get to any of the other choices.