That is a nice looking rifle there! I have one as well, they are VERY accurate with the GP-11 surplus ammo, I'm working to develop a load for mine that shoots to the same point. Also one of the outfitters markets Hornady loads for various military rifles....at
WWW.Grafs.com there is Hornady, Ruag GP-11 surplus and Prvi Partizan ammo for your rifle. Also do a google search for GP-11 ammo, lots out there.