First off, very nice, a .240 Apex is a very cool thing. I have ambitions to built one someday.

The scope mount looks identical to one on a Husqvarna 246 8mm I had here sometime ago. I have seen more than a few scandanavian bolt rifles with similar. It also looks like it has 26mm rings with a 26.5mm scope squeezed in it......Maybe (doubtful) a 25.4mm in 26mm rings. Anyway looks to be a later addition, along with safe lever.