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.
Understanding wind currents and thermals in hilly, broken terrain can often be incredibly frustrating. I've found that collecting and storing milkweed seed pods during the late summer has made me a better hunter in the bluff country that I hunt. These little feather like seed dispersers will float on the lightest of air currents and will show you what the wind is not only doing right at you're location but more importantly down range. I like to use the off season to float them...