Quote Originally Posted by Daan Kemp View Post
The 6.5x57 Mauser cartridge is almost identical to the .257 Roberts and predates it somewhat. 6.5x57 Mauser would be a logical cartridge for use in Finlandicon.
I agree with vykkagur, Sako is not the company who would by mistake put a wrong caliber designation on a barrel. Plus the mystery on the caliber was solved, it is .257 Roberts. Why should we now assume a company with such a tradition would make a typo or on purpose write the wrong dimensions on a barrel?

It is quite amazing that this conversion attracts so many people over the years and so many share their thoughts and input. Makes me happy I'm not the only crazy one who has such a passion for items this weird! And yes, I agree, the buttplate must had been an adjustable one. But based on the small size of the thumb and hand holes it might not had been a big one, since the person very obviously was rather small.

Edit: now imagine yourself out in the woods going hunting with this rifle in hands, atop a red dot sight