RE: 300+ yard Rifle which one?
Definatly would have to second the 7STW. In my opinion the best 7mm (what's better than an 8mm rem mag necked down to 7mm?) that gets the least attention. If you wanted to step up to a 30 cal bullet, check out the 300 RUM. It will shoot circles around the Win Mag, but factory ammo is pretty limited on it.