Thanks for chiming in, Con. It always good to get some first hand info and pics of the subject matter. I’m sure RIP will be along soon with a few questions. The first thing that strikes me is that it’s an ex mil 98 and not a Mark X.
My recollection of the build specs was that they definitely (obviously) used M98 actions ... I suspect it was ex-mil or whatever could be sourced to do a build. I cant recall the first Black Max being named as a Mark X action, some may have been though.
Personally I think its novel that its magna-ported.