Progress is being made, but very slowly. I have two sets of blocks in the vise and am beating on the barrel nut wrench and it is barely budging. I thought of the freezer idea as well. Should I freeze it all then try to heat the nut or just freeze it then just try to bust it loose? Like I say, it's moving, but way to slowly. The weird thing is that I'm fairly sure i'm back to the point where i could turn it by hand going on, but now coming off it's super tight.