Originally Posted By: Der Ami
B. Graham,
The way I learned is to turn the reamers in the headstock, center the barrel being reamed with a solid center in the tailstock and push it onto the reamer with the tailstock, while "dogging" it to prevent turning with a handvise( vise grips will work) clamped to the locking lugs, riding on the carriage. By doing it this way, before cutting the barrels off, you preserve the convergence of the barrels. If the barrels have been cut already( or if you made an actual monobloc), you will need to set it up at the correct angles in a mill with an angle plate and bored with a boring bar. Others may very well do it a different way.
Mike


The idea of doing that scares the hell out of me !