IMHO this is clasic bubba at work method....
Roman is correct. It can be done though.
I tried it a couple of times and if the barrel is very tight, you will need some incredibly strong rope.
The barrel also needs to be prewrapped with some sort of protective material that won't impede the gripping action of the rope.
In my case, I wrapped the barrel with brass shim stock of around 20 thou with a slight overlap and used a length of 3/8 in sling cable, with eyes at both ends.
The 4 foot snipe gave a lot of leverage, so be sure your receiver is held properly as you won't be able to use it to spin off the barrel.
The first barrel came off easily. The second barrel was a bugger. I ended up marring the finish on a nice receiver, even though it was well wrapped in brass.
That Savage barrel should come off fairly easily, the barrel nut on those should do most of the work.
Do NOT try to wrap the receiver with the rope to turn it off the barrel. You WILL collapse the bolt ways.