This topic hasn't been covered in a while so I thought I would rehash it.
How do you care for your air rifles and how often for each?
After every shoot I give my LGU a wipe down with an oily rag. Once a month she gets a light layer of ballistol on the stock, metal and external links etc. She shoots so well I do nothing internally.
The scope has its own two cloths. One for the body and one for lenses. Been tempted to do a wipe with my glasses cleaning spray, but don't want to risk it.
I was tempted to send a couple of those synthetic cotton like pellets down the barrel, but I read on "the lost volume" fb page Walther barrels need a good leading in or else they shoot like a shotgun.