IF the barrels were originally mono-blocked then simply remove the old tubes & re-tube. IF on the other hand the barrels were assembled by some other method then sawing them off "Does Not a Monoblock Create" but simply a short breech section of barrels. This section can then of course be bored out & sleeved as stated to provide a usable barrel set.


Miller/TN
I Didn't Say Everything I Said, Yogi Berra