My gunsmith fired 50 rounds of Remington 115 grain through it. I had never seen the ammo before. It was in a brown cardboard box and said something to the effect of "Military and Law Enforcement Training Ammunition". No issues of any kind with that stuff. He loved the gun and is going to buy one for himself.
When I got it back, I went to the indoor range and fired 50 rounds of 147 HST and 50 rounds of 124 AE. It's 100% so far. 279 rounds total.
This was the 50 rounds of HST at 14 yards. I'll take it considering how blurry the sight picture was.