I recently was able to get my hand on a BSF S60 that was in a fair state, but seeing I am not a gun smith I will give it a go as this will be my 3rd restore with only knowledge from the internet and learn as I go. I will show you the way I have done it. I do not say it the right or only way, but they way I found it to work for me
I do like the older air rifles as there build quality stood the test of time and are still enjoyable to have fun with.
Once received and striped, rust is quit evident.
Removed the old stain from the stock with some paint stripper and lots of sanding.
Allot of the screw heads where damaged and a locking screw was also missing. I also proceeded to give the larger metal works a light sand with very fine sandpaper to try and get rid of bumps and scratches.
The best way I found to remove rust from small parts is by electrolysis and I have also noted that cold bluing adheres much better once done. Small parts took only about 10 to 15min and the bigger parts like the barrel and main body took allot longer.
As seen above how rusted the trigger guard was, I think it came out quite clean and no engravings/stamps where degraded because these parts weren't sanded.
The stock then got a couple coats of Tru oil, metal parts was cold blued and received a heavy dose of oil.
Here are some pictures of rifle once all was completed.
Once completed and assembled the rifle got a place in my very small collection.
Top Rifle - BSA Cadet Major
Middle Rifle - BSF S60
Bottom Rifle - Norica Sport ( Know its not that old, but was restored as well)