I have a Relum Super Tornado 0.22 under-lever loading.
Been very well looked after, still fires well, even though this year was probably first use in 20 years ..... Not bad for a rifle that cost me £21 new in 1973

The barrel always has a few drops of 3-in-one oil down it after use, but read now that mineral oils not considered the best for the leather washer. (though still working well after 45 years)

Thinking of giving it a service. (ready for its 5oth birthday !)

If I take washer out assume its pretty soaked with mineral oil .... what is best way to clean it before soaking in a silicon oil. (reading that this is better than Neatsfoot ?)

Thinking that I would take springs out - if they look undamaged, clean, re-grease with Molybdenum.
If damaged - getting conflicting advice - several posts talk about replacing with single Airsporter or Meteor spring .....but 2 of the companies that sell such springs advise I would be better to stick with original dual-concentric springs, putting in single spring only makes cocking more difficult, makes a noisier action but does not increase output.