I'm new here. Got out an old Shanghai springer that I've owned for nearly 30 years. Shot a bunch of pests with it this sumer. Then I recently bought a Daisy/Winchester Model 1000. Both are delivering about half the velocity they should. Guess I have some cleaning and piston lubing to do. Now I have a vintage Diana coming. Anxious to set it in front of my Chrony. What lube do you guys use for the piston seals? Any different for synthetic or leather seals? I'm guessing the Shanghai has leather. It probably needs a good cleaning to get the the dried/caked lube out. Hope, but not too optimistic, that the piston seal is still good. If not, where might I look for a seal? What bullet lube do guys use - if any. I never have used any.