A friend of mine and fellow sxs enthusiast was showing me his 28ga nitro special the other day. It was a twenty gauge that he'd bought from a hobby gun seller on the internet.

When he got it the 20ga barrels had been sleeved down to 28ga by a fitting which could only be described as plumbinglike. I know the Pieper french guns had a stepped barrel connection to the monoblock, but this looked just like something you'd see in the pipes under your house.

Anyhow my friend had just had a gunsmith smooth out the connection and engrave a design around the joint. 100% improvement...Geo