I have used Nyogel 767 on my Webley Ospreys for several years and would never use anything else now. I bought a tube of it (it wasn't cheap) after I realized that Rocol had ceased manufacture of Kilopoise grease, which would have been my first choice - and it was very pricey as well.

It's difficult to describe how effective this grease is in this role, you have to try it yourself to understand that everything else is basically a waste of time. Buy some, if you're a tap loader fan you will never regret it.