The Model 96 Swede is a small ring Mauser unlike the Model 98 which is a large ring. The smaller receiver ring somewhat limits the case pressure so consider that if you want to bubba it by rechambering to a super duper magnum.
If it is still original they are very well made and quite accurate. Low recoil makes them fun to shoot. The 6.5 X 55 mm cartridge is common among European target shooters and hunters.
As for yours, Carl Gustaf is a arms maker in Sweden. The 1917 is the year the receiver was made. Husqvarna (yes, the saw people) also made M-96 Mausers.
Over the years I have seen several elk and deer hides left in the woods by hunters and I have to wonder why they do this? I fully understand and agree about getting the hide off the animal as soon as possible to cool the meat, but why not pack out the hide with you and use it? As far as I know there are no state laws that require you to take the hide home, but to me why waste such a beautiful part of the animal? Some might think they have no use for the hide or it costs too much to tan....