The action is a T3 tikka, it's chamber in the 25-06 right now which I have it shooting well. I was looking at ballistic's one day and look at the 7-08. I figure if I were to put it into long action I could reap the benifits of having the bullets seated out of the casing. And be able to add powder to make it an efficent hunting/bench rifle. I figure the action should work well for it.
Hell, they do that from the factory. All Tikka actions are long actions regardless of what they are chambered for. The only difference is that the short actions have a different bolt stop and a plug in the magazines.
Sure you can chamber it for the 7mm-08 but I still say chamber it for the .280 Remington rather than the 7mm-08.
If you want to go short action for a BR/hunting rifle then go .260 remington rather than 7mm-08.