Sounds like it is built from A-base brass (aka.. 43 Mauser). Curious to see the rest of the chamber measurement? I might have dies that will fit as this is starting to sound like the one in my cape gun. Take a card & flex it into a circle & insert into the chamber on the 16 side & slide down until it bottoms at the shoulder & mark it. Slide it out & measure for chamber depth.

m-4

Last edited by m-4; 07/06/12 12:33 PM.