Evolution if any of Win 52 barrels for accuracy

I have a 52 of about 1935 vintage. It has a Remington 37 barrel. After some digging I found that some shooters preferred the Remington barrel to the stock 52. Both are target type rimfire. My Remchester shoots well, better than I can. This is my only venture into a 52. I have always wanted one but didn't want to pay $1000 and upward for one. This was a very clean rifle and the cost was $525.
As a plus it came with a Vaver / Vartek aperture sight. I understand this is a premium addition. I have added a Lyman Super Target 20X on external mounts.
I just shoot it for fun and use it to test various brands of rimfire.
This might not answer your question, but once I started typing I got carried away.

wwace, That is an interesting observation. I have no history as the owner prior to me passed a while ago. He was a tool maker and machinist and I suspect he did his own work. More than one person commented he was a force to be reckoned with at the range.I am just having fun. I wish I could put my CZ trigger on the 52. When ZI shoot them back to back, I have to shoot the CZ first or my trigger muscle memory really is out of whack switching from 52 to CZ.

I bought this 52 on impulse for the most part. I cleaned the barrel and action that could be reached without taking the action from the stock. It is currently at a measured 6# and acts like it is very dirty. I am going to break it down and give it a good flushing and go from there. All I need is time.