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I would go with 7-08 over the 260 if you don't reload.
Have you looked at the 6.5 Creedmoor at all. Very similar to the .260 but more ammo availability. Grabagun has a great deal on a Savage Lightweight Hunter in 6.5 CM right now.
I reload and I would still go with the 7mm-08 just because of the wider range of bullet weights. I cant say anything bad about the 260 though. Both excellent rounds.
I have both in a Remington 700 as far as witch cal. I would have to flip a coin both are good. I do thing the 7-08 is a little better for deer in this part of the country.
Loved my 260 and regret selling it. Your on line asking the question, so don't worry about ammo availability. Order it online. You get what you want, when you want it, and more than likely Cheaper even including shipping.
I have both those calibers and I have a Browning A Bolt in 270. I'd go with the 260 over the 7mm-08 for deer, and I love the A Bolt, so that's my vote.