Barrel won't seat fully
First of all, I cleaned both the barrel and internal trunion fully. Checked for burrs, polished out a couple spots I thought would be problematic. Gave the barrel and trunion a light coat of oil.
Next I froze the barrel for several hours.
I used the bolt to slide hammer it in place to start it. Then it stopped moving. I broke out the ball peen hammer and a thick nylon rod I use to hammer things in place with. It moved a little more but stopped. Next I broke out the 3 pound sledge and it moved a bit more but not enough.
I am using a large deep socket that fits over the barrel and layers of electrical tape to protect the finish, and the anvil portion of my bench vise to hammer on.
So internally it appears as if the barrel is seated with the collar sunk into the recessed ring in the trunnion, however the pre drilled pin notch (surplus barrel) isn't lined up by an 1/8" yet and the charging knob holes are about the same to the end of the channel.
I'm about to go buy a press, but before I do that, do the surplus barrels ever not line up and need to be redrilled?