My Savage 10 sports a barrel like yours, heavy profile, threaded muzzle, but mine is only 18" long. It's model 10P-SR. I love this rifle!!! I mounted a Vortex Viper 6.5-20x44 on mine using weaver 1-piece picatinny base and Warne steel rings. Also added a JP Enterprises tactical comp to mine.
"Laws that forbid the carrying of arms...disarm only those who are neither inclined nor determined to commit crimes...Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man." - Thomas Jefferson, 1776