Hello everyone.

I'm doing research for this story I'm writing, and I found myself needing to know the material specs of the SMLE Mark 3.

And thankfully I found the UR thread that talks about the material specs of the Lee Enfield on the internet on this thread of this website:

https://www.milsurps.com/showthread.php?t=13115

Now my question is had all the steels other than the B.S.S.5005/401 been figured out? As in, are their modern equivalents discovered?

What is Steel. D.D.8? What is Steel B.S.S.5005/103?

Please respond.
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