>>385706403
Closer than a pancake game, but still miles off. Its true that you can train certain things like keeping both eyes open when aiming, and to some degree your ability to point something straight. but a lot doesnt translate. Like pushing the stock into your shoulder or flinching when you shoot. I'd say what it is good for is learning the controls and the overall movement of the gun. Like where to put the magazine or switching from safe to semi/auto and pulling the slide/charging handle. 
t. 550 hours in h3vr and shot about 100 rounds from an ar-15