I have an RCBS case trimmer and would like to buy pilots in order to trim my 416 Rigby and 404 Jeffery cases. Unfortunately I haven't been able to locate them in France. Common supplier websites don't list them either. Can anybody tell me where I can order these?

It might be easier to make them, if you have access to a lathe or know someone that does. It would all depend on whether you have to pay the going machine shop rate or not. They don't take long to make, the minimum charge would be the killer.

Thats what I was thinking I haven't brought a pilot for years. But then I own a lathe I just chuck up some steel and turn them out.

Most suppliers here, like Midway can get you pilots. The .423 will probably have to be custom made or you could turn down a pilot for the .44mag (0.429").
http://www.midwayusa.com/ebrowse.exe/browse

I think I will take the pilot for 44 mag that came with case trimmer and have it turned down for the 404 J. Thanks for the info though, saved me some losing any time on a vain search. That's what AR is good at.