Count me out also.
However:
Parker Brothers 1893 Catalogue
“Our guns are bored on the latest improved system for shooting Nitros, or Smokeless Powder, and all our guns are tested with some one of the most approved makes, and a tag accompanies each gun, giving the results of such a (pattern) test.”
c. 1900: The “standard” U.S. 12 gauge Field and Inanimate Target load was 1 1/4 oz. shot with 3 1/4 Dram Equivalent (1220 fps) of Bulk Smokeless in a 2 5/8” or 2 3/4” case, with a modern transducer pressure of 8000 - 9500 psi.
Live Bird loads were usually 1 1/4 oz. 3 1/2 Dr. Eq. Bulk Smokeless Powder with a pressure of about 11,750 psi (modern SAAMI max. limit is 11,500 psi)
Metal embrittlement has a “rock-candy” appearance, but it is impossible to tell from that image.
You mean to tell me that in 1900 they were shooting "standard" shells that developed up to 9500 psi of chamber pressure? Or is that CUP or LUP recorded chamber pressure that was converted to psi?
