I really like the 260, I have no experience with the Creedmore but from what I have read they are very close.
Now with Lapua making 260 brass it may make the decision easier.
You just made my day!!!
BCBrad,
There is no definite answer to your question, but some factors that will influence the answer depend on whether you reload, how far you are talking in terms of "Long range Hunting" and what you intend to hunt.
Furthermore, if you are limiting your rifle choices to just the LRPV, well it may be a case of the best of a small lot.
The 6.5-284 is a great long distance hunting cartridge, it can be exceptionally accurate and will easily handle any 6.5 bullet out there. It suffers from short barrel life... now, as a hunting rifle, it will last a lifetime, but if you plan to shoot targets , count on an accurate life of 1000 rounds or less. My last was done at 750 rounds.
The 6.5X55 SE round does everything the 6.5-284 does, but with better barrel life. It is not available in Savage, but Tikka makes several rifles that would do double duty, (The Tikka Varmint and Super Varmint) and they are exceptionally accurate guns. and very well made.
the 260 is an excellent 6.5 cartridge for accuracy, but with heavy bullets, may not have the terminal energy of the previous two cartridges for long range hunting. The ammo is easy to find, and they a re pretty easy to make work.
The Creedmore is a good cartridge, but ammo and brass are hard to find, plus I have a prejudice that if I cannot get Lapua brass for something, I won't use it.
FWIW, if I were to want a long-range multi-purpose rifle in 6.5, I would build/buy a 6.5X55SE in a heartbeat.