Is there any real difference between the .300 win mag and the 7mm rem mag? I have owned and harvested deer with the .300 win mag and I really like the cartridge but I have never owned a 7mm rem mag but thought it might be a nice rifle to have.
Though I really do not personally have much use for either cartridge, they are both good flat shooting cartridges with good down range power. The .300 win mag has the capacity to push a considerably heavier bullet than does the 7mm mag at high velocity. Off the top of my head, the .300 is capable of 230 grain bullets at 2700 mv, while the 7mm is capable of a 175 @ 2900.