Hi guys, i have a question i have decided to get a new rifle, i have decided on a ruger m77 mark2 sporter in left hand, it has black laminate stock with ss barrel. the thing is i am undecided between a 7mm rem mag, and the 300 win mag, i am definitely getting one of those calibers, what are yous opinions and this rifle and or these calibers and why? thanks for your time.