This is a new Savage 24" threaded barrel from the Ashbury model. Only test fired in factory. I never fired a round through it.
It fits the large shank receiver used by Savage precision models like the LRP, Stealth or EVO... and maybe some other models.
5/8-24 Threaded muzzle
1:10 Twist Rate
If you already have a Savage large shank receiver in 6.5 Creedmoor or 7mm-08 or 338 Federal, all you need to do is replace the barrel and you have a 308 to practice with. There are plenty of ammo available in 308. And changing the barrel is easy to do.
Asking for $200. I am at airgun 101 at google mail dot commercial. (No space)