This is a picture of my oil filter cut open to investigate engine knock.
Is this how it looks when a bearing is spun or what?
The metaldust is silver colored not copper.
There is PLENTY more in the oil pan.
I have pics of the bearings. the pan, oilscreen and crank journal.
Seems highly likely to me - post up the pics of the bearings & cam journals etc though, easier to tell from those usually..
Something is definitely disintegrating in your engine though..