Mike, I am away from home for several weeks and my savages are in safe storage. I will do some research when I return home.
7-16-16 "Kinda hurts my heart to think that some rarish 30" 20 gauge and 32" 12 and 16 gauge 220 barrels may have had a foot lopped off them to make them more "handy"....but I SUSPECT that's what happened."
Mike, I am home now and have just finished measuring the Numrich 20 Gauge slug barrel against a Utica standard 20 gauge. I will have the technical measurements, in detail, in my revised edition, if I ever get it finished and printed. But I can now say that I strongly believe this Numrich barrel was NOT made by Savage and cut off for later sales. The dimensions of the Numrich barrel are mostly much larger that the Savage barrel.