As Matt noted, the problem's with smokeless and the Damascus barrels was with the handloader's "switch" to the new high energy powders. No one had powder scales and hardly anyone understood anything about pressure. As with black powder, figured if they put more in, it goes faster & kicks more is all they knew. 1 or 2 of the powders were 'bulk' powders, some were not. That only confounded the confusion. Once read that Purdey made Damascus shotgun barrels until 1929.

Even today, some people who are loading their own 'shells' rifle or shotgun, should not be as they cannot follow instructions, let alone standard rules. They still use dippers and still add a bit more to get a bit more velocity.