Here we go how the game Sniper Elite VR is handling the weapons with a VR Gun and believe me, it does it also without it, but less often of course...
One of the worst weapon handling implementation I ever sen until now, and I play A LOT of game using the VR Gun (Medal of Honor Above and Beyond, Contractors, Onward, Pavlov, Zero Caliber, Payday 2 and so on)