Just to clarify, "best" quality English c. 1830s-1840s MLs usually had Stub Twist. 1850s MLs usually had Laminated Steel or (less commonly) "English 2 Stripe" crolle Damascus. That Laminated Steel barrel material is however
not the "3-Rod English Best Laminated Steel" that was the winner of the Birmingham Proof House Test Trial reported in 1891
https://docs.google.com/document/d/1dnRL...ref=2&pli=1 More information here
https://docs.google.com/document/d/1__gn...ref=2&pli=1 It should be noted that both the English and esp. the Belgians also referred to Twist barrels as "Laminated Steel".
Unfortunately, I did not have any Laminated Steel samples to include in the hopefully soon to be published tensile testing performed by METL in 2014, nor could I find any published or advertised tensile strength reports thereof.
