Originally Posted by mdauben
Yes but it's not really optimal. At those ranges the energy of the bullet from a .308 is down to around 500FP, the bullet drop is in excess of 200 inches and wind drift in even moderate winds is measured in feet.
There's a reason police and military snipers switched from .308 to .300mag, .338 Lapua and .50 BMG.
Well here in California most all jurisdictions throughout the state pretty much limit their SWAT guys' "sniping" to 100 yards for fear of longer shots causing collateral damage. The 308 Win. is just fine for that so thats what they have. The barrel life for the 308 win. is fairly long before it's shot out and factory ammunition for the 308 Win. is fairly cheap to boot.
That being said the 308 Win. is just going trans sonic @ about 1000 yards which usually causes instability in the flight of the bullet. If you are going the .308 Win. route use the 175 grain SMK's or the new Berger 180 grain hybrid bullets. They'll get you to 1000 yards on paper target but with alot of drop.
If you don't mind the recoil, the 300 Win. Mag. is a pretty good round especially with alot of factory expanding tip hunting ammunition avaialbe and factory loaded BTHP target ammunition is also avaiable from several manufactures for this caliber. With a bit heavier rifle and a timed brake the 300 Win. Mag. is quite tame when it comes to felt recoil. The barrel life is a bit short lived though in this caliber.
If it were me, because you want to hunt with it, I would go for a .30-06. There is alot of variety of factory hunting ammunition avaiable and Federal and probably several others do make BTHP target ammunition in this caliber. The .30-06 will get the job done to 1000+ yards, the recoil is not bad, barrel life is long, and variety of ammunition for this caliber is plentiful.