If your rifle is anything like mine, putting three shots under 1/2" should be easy when you find the sweet spot. I've been able to put three into a nickel-sized group.
A nickle is only .750". The rifle does that now.
Sorry, my memory let me down on that one. I went back and looked. It managed to put five shots into a dime and I stopped the tuning at that point. No clue if it would have tightened up any more, but I didn't see much point since it's a hunting rifle.
