In the mid '70s I visited Remington to see their powder metal operation.I was also a metallurgist .I had asked about also seeing their gun operation -they said yes ! At that time it was very rare for anyone to see the gun factory !!
Even at that time most gun factories were using cold swaged barrels .
It was interesting to see them make the 3200 ,carved out of a solid block of steel to leave a thin shell! Most of Remingtons were machined while most of Rugers were investment cast.
I'm glad I asked for the visit.