45 2 7/8 Groove Dia Patched

[Semtav]

John Taylor chambered it. He sent me a drawing of the chamber but it was too small to read and I can't blow it up. I'll have to make a chamber cast when I get home but I think it is a standard chamber.
Chamber seemed pretty tight for the new Norma brass I had when I tried to chamber one the other night while home. Had to run one thru a full length sizing die to get it to chamber, so it might be too tight for groove dia patching. Won't know til I do some checking.
Brian