Mmmm see personally, I will never have a metal stock on a rifle, especially alloy as it doesnt absorb vibration, in fact it can amplify it. But in most rifles it wont be noticed. Only when shooting BR/F-Class will you notice it in rifle tune.
But will if effect a rimfire?? I dont know.
I have a Pro Varmint on my Anschutz 1416DHB .22LR. Its shooting around 0.4in to 0.5in average for a 6x5 at 50m.
The other thing with chassis rifles is that metal retains heat alot more then wood, etc. So if you shoot somewhere that can get hot, your going to notice it on your rifle.
Please note that I shoot F-Class Open and have previously shot F/TR aswell. I goto the n'th degree with all my rifles because well, thats what I do coz I wanna win. I treat my hunting/plinking rigs the same in alot of ways.
What part of Upstate NY are you in? I was born in Syracuse and still have all my family back there.
West side of Rochester
Mike