Howdy Gents,

I can shed a little light on this topic!  I have used Clive C. Lemon Conditioning Oil off and on for about 25 or 30 years.  It is an English product and the name of the inventor is/was Clive C. Lemon, a well respected stock maker there.  Since there is no lemon juice in the product, and thus it is not acidic in nature, it does no harm to metal, either blued or CCH.  The CCL Conditioning Oil can be applied alone to raw wood as the sealer and complete oil finish, or it can be applied only as top coats over other finishes used as grain fillers.  The maker recommends that a stock finished with CCL Oil only needs an end-of-season application of a few drops hand rubbed-in to keep the original finish looking good.  I found it to be an excellent product and got better high gloss results (if that was what was wanted) in less time using it than with anything else.  I agree with Chuck in that almost any kind of hard-drying oil will work, but it all depends on how you use it!

It used to be sold by Brownells long ago, and they dropped it from their product line-up, likely due to insufficient sales volume (pity).  I believe that Lyman Products was he next importer and offered it for only a short period of time and then dropped it too.  When I couldn’t get it domestically, I ordered it directly from gun shops in Britain.  It cost a fortune for air shipping (which was a real no-no due to the mixture being flammable oil) but it was worth it.  The last importer that I know of was/is The Double Gun Journal. They used to have large ads for it in their magazine, but I haven’t bought a copy in some time now, so can’t vouch for that.