RE: 300 win mag deer rifle?
Definately on the high-power side. Some guys will tell you its great...I'll tell you its overkill, but if anyone understands the ordeal of not having enough dough to go out and buy an ideal gun for each and every game/situation its me. Besides, its all personal preferance anyways. It may be very easy for you to get a flinch from the higher recoil than other popular deer cartridges. That's about the only objective criticism I can thing of, that and the cost of ammunition.
If you're feeling it...go for it.