Quote Originally Posted by JeepsAndGuns View Post
Very interesting and I have also never seen that.
My only concern is, why was the barrel removed and put on ebay? Makes me wonder if it was replaced because of poor accuracy.
The only thing I can think is not very good things when the bullet is going straight and picking up speed before suddenly slamming into the part of the rifling where it starts to turn. As opposed to a normal barrel where they start to spin as soon as it starts touching the rifling.
I am a little worried about possible damage to the jacket when it suddenly starts to spin.
Or I might be wrong and it shoot great. I am very interested in the results.

I think you are all wrong. This is nothing more than the same effect of freebore. Doesn't make much difference, the barrel is junk.
FYI... I've seen Savage button rifle barrels with my own eyes, the button turns.