I haven't seen that one Dave but I'll challenge it with Parker No. 10165, a twenty-gauge lifter built on a frame size about equal to the 00 frame, with exceptionally thin chamber walls. Jim Parker wrote about it in the Mar/Apr 2003 issue of Parker Pages and I'll be re-publishing it in the Fall 2017 Issue but with a bunch of new pictures, including a shot of the breech with my thumb in the picture to give some perspective to it.

Last edited by DAM16SXS; 07/24/17 12:05 PM.