I've run thousands of rounds of both 193 and 855 through my V2. It performs beautifully with it all and can easily do sub-MOA groups.
The only ammo I've had any issues with in my DD is Wolf. This is because DD doesn't over gas their rifles. A lot of manufacturers use larger gas tubes to function with lower quality ammo. I found Wolf causes my V2 to short stroke a few times per mag.
With anything else it runs 100% perfectly.
Enjoy the gun. It's a hell of a nice weapon.
Glock 17 OD | Glock 19 G4 | Glock 21 G4 | Glock 20 G4 | Springfield TRP Black | Smith & Wesson M&P 9 Pro | Smith & Wesson M&P 22
Daniel Defense DDM4 V4 | Arsenal SGL 21 | ASA SBR w/ Side Charger | Mega/PSA M4 Clone | Remington 700 SPS Tactical | Savage Mark II FV-SR
Mossberg 590A1 | Mossberg 500 Cruiser w/ 590 14" front end | Remington 870 Tactical