The owner said they couldn't have someone bringing in bad handloads and such, but when I questioned him about .22 ammo he still said it was for insurance liability.
OK, that makes sense....if they don't make enough money to pay their insurance, then they will be liable!
The range I go to these days has only one rule about ammo. NO TRACERS!
(that also includes incindiary, API, or anything that burns).
The one other rule that covers ammo isn't about the ammo, its about what not to shoot. NO shooting AP ammo at the steel targets! The are steel plate targets at 200, 250, 300, & 400 yds on the main range.
One indoor range I used to go to (now gone, owner retired), had a speed restiction. Nothing over 2000fps, if I remember right. He loaded and sold ammo, but it wasn't required you use it.
SO, with this range you are talking about, I guess anybody that has a gun in a caliber they don't stock ammo for can't shoot there at all, huh?
And nobody who handloads will go there to test their loads....
SO, I wonder if the owner really thought this through. The tiny profit they make on the ammo they sell to every customer vs. the reduction in the portential customer base (some of whom would buy some ammo from them, sometimes, anyway)?
No,its not a common practice where I live.
I think the owner is using "insurance" as an excuse for his policy.
Tell him you have a "friend" who can probably get him a better policy or a better deal on what he pays for that insurance, and see how he reacts!