Swapping barrels on these can be quite a trial. Sometimes just removing the old one is so difficult that it's not worth doing! Other times it can be no big deal.

It's best to have a well fitting action wrench, a BIG hammer, and barrel clamps that fit very snugly.

Any more I would generally say to leave it "as is" if it's shootable and buy a nice complete rifle in addition. If the bore is ruined, then have at it, but there's usually lots more involved than just spinning the old barrel off and the new one on.