And so the process of hack smithing begins....

[ellobo]

After desperatly trying to get a barrel off an older savage using the barrel blocks, rosin, powdered sugar and alll the other advice that didnt work I got desperate. I took a 2x4 cut to 4 inches long and fitted it into the magazine opening to fill the action. I then put the 2x4 that extended below the action in a vise with the bottom of the action resting on the vise. I then had at it with the nut wrench and a ten pound sledge hammer. After about 20 whacks I got the barrel nut loose. No warping of the action that I could detect and this rifle shoots great with its new .35 Whelen barrel. It was an older flat back 30-06 action. I did not have the same problem getting the nut off two more action though I had to dremel off one of them.

El Lobo

[rscotth]

This won't help you now but next time stand the barrel up and let some Kroil soak into that nut over night. The stuff is like magic and the wd40's and pb blasters don't even come close. We use it to disassemble gas turbine fasteners with 30K + hours that have a firing temp of over 2400 degrees and NOTHING else comes close.
My last two barrel changes the nut was off in two whacks or less.
Regards
RSH