I would say that if your aim is to hunt moose/deer/bear with it, I would go with a 7mm. The .284 has more versatility for reloading bullets, 120 - 175 grain. The heavier 7mm bullets will be good for moose. The 260 Rem you could build is okay but I think you will have some long tracking sessions if the 6.5 does not do the job. But you still need to place the bullet well for either round. To be honest, I've taken an elk with my .260 130 grain TSX one shot DRT. I'd want real good shot presentation with the 6.5 though on a moose and would keep ranges under 200 yds.