That helps. Please note though that even as Crescent-Davis in 1931 the barrels were still listed as Decarbonized Steel. That is Bessemer process with a tensile strength about 63,000 psi; well below even early 1900s fluid steel.
It would be reassuring to know the actual wall thickness, but if adequate, and used with loads for which it was originally intended ie. 7/8 oz. 2 1/4 Dram it should be OK.

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