Exciting story! Glad it turned out ok in the end. And a great looking animal!
As much as I like my Sakos, it is not the first time I hear this story. It seems like the newer models (when they went from the fixed, mauser-style ejector to the spring-loaded pin in the bolt face) sometimes send the case in too vertical an angle, rather than sideways. With a low scope mount and/or large turrets this can send the empty case right back.
I dont think it's a coincidece that even the lowest Sako-made mounts can still handle scopes with 45-50mm objectives. They want that extra gap for safety/margin of error. Maybe it's not much of a conspiracy theory, but at least it's mine
My own rifles predate this innovation but the same thing can of course happen there as well, but only if the bolt is being worked much too softly.