Bill,
My phrasing might have not been too clear but Jack and Jim understood what I was talking about.
Here is a close up picture that I didn't crop just to show you what it looks like.
The washers give you an idea what I was talking about. Most guns have "land" between the barrels, these do not. In the other photo you can see what has to be done to the barrels to make this happen. So instead of the barrel walls being .70 thick all around, where they meet they are only about .027 thick.

[IMG]

Last edited by JDW; 10/11/08 10:01 AM.
David