Today I put 190 rounds through the PS90:
- 100 x FN SS197SR 40 grain Hornady VMAX (made by Fiocchi USA)
- 40 x Fiocchi Range Dymanics 40 grain FMJ
- 50 x AAC 40 grain FMJ
The AAC ammunition felt very consistent. In contrast, the ammo made Fiocchi had a few rounds which felt like they were loaded a bit light.
The SS197SR and FRD ammo gave me a few malfunctions where the bolt didn't seem to reciprocate far enough back to recock the hammer and strip a new round into the chamber. However, they may have been related to my #2 magazine so I'll keep an eye on that one. I'm going to disassemble it to check for any burrs or flashing left over from the molds.
The PS90 performed perfectly with the AAC ammo.