With the modern machinery and measuring devices made today, I wonder why they cannot put a barrel on perfectly clocked to the frame?????? 
I have handled a lot of Smiths over time, and have seen only a couple of the pinned ones that were off a bit, but the sight was still verticle enough that it still had a good sight picture.

I have handled a lot of Smiths over time, and have seen only a couple of the pinned ones that were off a bit, but the sight was still verticle enough that it still had a good sight picture.