Beautiful work to say the least!
One would be certainly proud of this stunning beauty.
I know the appeal of the 425 being a rebated rim was to use stripper clips to quick load the magazine, it may seem silly but you think WR would have possibly kept the feature - even if for nostalgic reasons for a Professional hunter or game warden variety styled rifle?
As to the question of the scope mounting to the rifle, how does it fit into the square bridge?
I'm assuming that those little 'D' shaped pieces pop out & the feet of the scope mount slide into there, there must be some locking mechanism of sorts to lock them in place as I see what could be a case hardened pin on each mount to release/engage every time you replace the scope?.