My guess is a Mauser action, but we need more details.....
Yes fellas a Belgian large ring, FN K-98 Mauser from the get-go. Sorry for the blurry pic!
When I purchased it in 1999, the previous owner had it made up in the early eighties. It had this 21 inch aftermarket barrel, the original black walnut was cracked and repaired at the wrist by the previous. The gunsmith who did all the metal work was from the Lethbridge area, part-time gunsmith, full-time locksmith, with the letters A.L.B. of his name, which are still clearly visible on the barrel shank. The rifle bore looks to my eyes, to be fully polished. For the life of me, I cannot remember his full name. My experiments with hot loaded 405s just added to the crack, so it was easy for me to decide on a chestnut laminate sporter stock from Boyd's. The trigger is a very old Timney. It's unmarked but has the older blue-greyish glass beaded finish I kind of recognize for that after market adjustable trigger. The added bonus of the long magazine well allows the long seating of bullets outwards, so two position cannelures can be utilized with ease. The magazine feed rails were properly modified as was the boltface/extractor, therefore it feeds and ejects like it was made for this calibre. Those big ole rounds take up alot of space, but I still can get three into the internal mag, so no worries here. This gun can boot like a f*****, but it holds it's zero well, and takes almost twenty rounds, before the bullet holes wander from your aiming point @100 yards from the hot barrel. Oh yeah, I had the gunsmith at Ellwood Epps, install a Benelli mercury recoil reducer in the Boyd's stock and this helps somewhat in the recoil department. But it does mess with the rifle balance, and took some time to get used to.
I can modify any discarded H&H magnum empty casings from the discard buns at the Bonnyville Range. I bought the conversion die from RCBS quite a while ago from thier warehouse in California. Recently my scoop was two full boxes of once fired Weatherby brass.....($$$$$)
Too add, I got this rifle without scope, the proper RCBS reloading dies, and 44 rounds of loaded ammo, for the enormous sum of $400!