Dusty,
Nah. You know by the time you've pulled the barrel, chased threads, cut a shoulder, rechambered, cut the reliefs, head spaced, re-worked the Breach Block, cutting down the mag tube is chump change. I just wanted to include another step, just for grins. However, the total job isn't cheap. If the ONLY game you play is Wild Bunch, it might even make some sense. A lot of money for a little convenience.
Coffinmaker
(it's ONE word)