Better late than never, but I had to chime in on this as a late convert to the charms of the 6.5 bullet and sharing my opinion of the stupidity of Remington's marketing department. I too, believe the 6.8 will never be commercially viable as a cartridge because the majority of US shooters and hunters are only interested in "bigger + faster = better". Which is why Winchester had the foresight to almost overload the factory ammo in the Short magnums so they could be "comparable" to the existing magnums. At least winchester understands the market. The .260 remington is probably a good cartridge, though the 6.5x55 Swede is probably better due to its' greater case capacity and ablility to handle the heaviest bullets available. If Remington had been smart enough to chamber the .260 in their less expensive rifles the ADL and now SPS, it might have had a decent chance. There are a lot of new shooters/hunters who would like something that hits like a .270 but kicks like a .243. But not if it is only offered in the high buck version of the rifles, (BDL, Mountain rifle). Winchester was smart enough to offer their Super Shadow package deal in the Short Magnums through Walmart for less than $400. (I remember, I bought one in .270WSM) This pretty much guaranteed the success of the cartridge by offering it in affordable rifles. (And I believe they are making back the profits on their ammo sales. Explain how .270WSM ammo should be 70% more expensive than .270 Winchester amm?) Fortunately, handloaders are immune to such profiteering.
The cheap rifle is a good way to insure the success of a cartridge. Why do I own a 6.5x55? Well it is a nice, light recoiling, effective medium game cartridge that was available in a decent quality bolt action rifle for less than $400. The Howa 1500 Lightning. But I am afraid that trying to sell the public on a .270 that is 400 fps slower than the standard 270 Win with a bullet that is 15 gr lighter won't cut it. Even if Savage chambers the Stevens for it! But if Remington would pull their head out of the target butts, or wherever they have their heads stuck at the moment, and chamber their new SPS rifle in .260 Remington, I will buy my first Remington rifle. If they don't I guess my next rifle will be another 6.5x55, either a Tikka or CZ 550. Effective, affordable, quality. Hopefully Big Green will take some notes.