I did cast the chamber.

The length from breech face is ~2.925"
Neck diameter is ~.392"
The shoulder length is ~.08"
Diameter behind shoulder is .410"
Diameter at breech face is .470"

Bore diameter in front of neck is ~.367"

Like i said, the barrels are just sleeved in and extractors are not fitted yet. So there is no rim cut yet to get a rim measurement from.


B.Dudley