Tom

Been there done that.
I had decent results even though I was using a gun with 20" tubes.
Getting ammo to work with the modern tubes has been interesting.
However as stated above, unless re regulating your results will only be as good as the gun was originally built, and most were built for shot.

I will try find my original thread.

Nitro

http://forums.accuratereloading.com/eve/forums/a/tpc/f/971103014/m/5651045551

Thread found.