Thanks guys, I already went with the Swede and so far I love it. I'm happy I went for the 6.5x55 SE for a number of reasons. I'm sure I would have liked the 25-06 as well, my friend has one so I'll eventually get out with him and shoot both and compare. As my first centerfire rifle I'm really happy with this choice.
I've been shooting the 140 Federal Power-Shoks and the recoil is mild enough to shoot all day from the bench but powerful enough that I feel like I'm putting something downrange with enough authority to get the job done. I guess that is one thing I really like about this round, the pure efficiency of it. I was out coyote hunting yesterday and day before and yesterday as I was leaving I saw two Antelopes bounce over a ridge. I drove up to the top of the ridge west of where I saw them go over and stalked back towards them. Terrible conditions, the wind dead at my back and blowing my stink right to them. Even so, I was able to glass them out and stalk up to within 150 yards or so by using a big prickly pear stand as cover. One was a really nice buck with ~16" horns and a big body. If I had a tag and it was season that would have been my animal. I hope I get drawn for Antelope next season, I'll be so stoked to get out after them with this rifle! As a side note, they slipped down into a valley and I scoped out 18 of them in all and I also found a cool old Antelope shed horn.
But back to the Swede. I like that it is a military round too, I ordered a 200 round "battlepack" of ammo and that should be fun for going out target shooting. At 50 cents a round it's not too bad. Much cheaper than the Federal and I read a lot of guys say they were actually getting great groups with it. I can't wait to start hand-loading, I'm going to get that all set up after the early archery season. (I got drawn for the 12A bow hunt on the Kaibab Plateau here in AZ!)
In case anyone else is looking at this thread while trying to decide between these two great cartridges here are some of the things that I considered when I decided to go with the Swede. By the way, I named her "Ingrid"
-Availability of Mil-Surp Ammo
-Great BC/SD
-Handles a broader range of bullet weights than the 25-06
-Outstanding reach, bucks the wind well (many mentioned records being set on the 1000 yard line these days with the 6.5mm bullets)
-Long neck, good for seating the bullets close to the rifling lands
-Vast number of knowledgeable reloaders cooking up loads
-Extremely well-established round (been around for over 100 years)
-Outstanding record as a proven hunting round for all kinds of game
There might be a few more things that I came across while I was researching, but there's a handful for now. I would say that in hindsight I probably should have taken a better look at the .260 Remington. I probably still would have gone with the Swede, but it's interesting that the .260 can be built in a short action (good idea if you want a lighter-weight mountain gun) and the cartridges can be made from other rounds like 30-06, .270, .308 whereas the 6.5x55 SE cannot. At least, that is my understanding, please correct me if I'm wrong as I haven't even begun reloading and I'm only going off what I have read elsewhere.