Yes I noticed this as well. It seems as though that Mauser removed these from their website some time ago with only the Magnum action for sale. My guess is that as the standard length action was sourced externally they dropped it from the line-up to make way for the in-house produced model that we see now. The caliber choice before hand was also much greater including 9.3x64. Considering that they only offer five choices which are the same as those offered by Rigby, one has to wonder whether the barrel is threaded and therefore removable, or is it permanently attached like on the Mauser M12. Maybe John could ask Marc Newton.

Waidmannsheil.