Yes, it does copper foul a bit, but I've not put more than about 30 rounds down it since I started shooting it, but it shoots very well. 

It's serial number 133937 and professionally sporterized probably sometime in the 20's. Was purchased around 1940 from a pawn shop by my Dad.

I don't recall him ever shooting it when I was young, and I put one round down it about 1969 during a pig hunt. It sat until 2015 when I shot it again, and bought dies for hand loading.