The new website for Nitrochemie of Switzerland's powders has just gone live. They make Reloder 17 and Elcho 17 - they call it RS62. There is data on the website for the 270, 308 and 30'06 but not much else of interest to English stalkers. Unfortunately they don't seem to have a UK distibutor yet.
Also seems that Vihtavuori has been bought by Nammo, so looks like they won't be closing now after all.