Just trying to get my head around something here, hopefully someone familiar with Sako will be able to explain this to me.
Looking at online images of Sako Optilock set-ups, and with regard to the forward base + ring, I've noticed the following. In some cases the ring is positioned at the forward end of the base, while in others it's to the rear, as in these 2 images:
I presume Optilock bases come in different types, with a drilling for the ring either to the front or to the rear, and the appropriate one is chosen according on the action length, the length of the mounting area on the scope, and maybe other factors I'm not aware of. I know there are other Optilock bases that cantilever out over the bolt opening, but this question doesn't concern these.
I can't find any reference to, or mention of, the availability of 2 different Optilock base types, as in the images above, anywhere. Can anyone enlighten me on this? (I've probably overlooked some very simple and obvious explanation!)