RE: deer rifle
I was going to reply that if it is only deer that you are after then a .270 win would be about the ideal rifle. Pushing a 130 gr bullet it's about the same as a 7mm Rem Mag pushing a 150 gr but the 130 gr bullet should be plenty for even a big mule deer IMO.
The 300 win mag is a heck of a gun, but a bit overkill for deer if that's all you are after IMO. The 7mm Rem Mag is a fine gun and it's the one I chose, but that's because I want to throw an ocassional elk into the mix. If I was just after deer and smaller (a .270 win is also an excellent antelope gun) I would have gone with a .270 win.
So if you already have a .270 win and you really will only be using the rifle for deer then get a nicer .270 win (like a Kimber Montana or Browning A-Bolt Stainless Stalker) or put some money into a nicer scope or put your money in a savings account for something else.
My 2 cents. Nathan