It's an entry level hunting rifle made between 1957 and 1959. Norrahammar was the name of the cast iron foundry owned by Husqvarna(they're a huge manufacturing conglomerate like Colt Industries).
Use any 165 grain hunting bullet with IMR4064, IMR4895 or any other typical .30-06 powder and load data from your manual. A 165 will kill any game you care to hunt.