What are the Pros and cons of each? I'm going to be building my first long range rifle and I cant decide which one to go with. All I know is that I want a 6.5mm bullet.
Owning rifles in both cartridges I would opt for the 6.5x284.
It will kill everything the 264 Win can out to 1200 yds.
50.0 grains of RL17 will fetch you 3,000 mv with a 140 Berger VLD.