I sent about 150 rounds of 38+P and .357 mag down range using a range gun. My experience was not a good one. Granted the gun was dirty indicating that it had been used that day. The action was so tight that I often had to use two fingers to pull the trigger in DA. I wondered a the time if the previous user had dropped it or abused it. Groups were averaging 6 to 7 inches at "5 yards".
I'd have asked for my rental money returned & some manner of compensation if you were (likely) forced to purchase their ammo for that rental.
7 inch groups at 5 yards?
Attention Brass rats and other reloaders: I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.