Friend has a Yugoslavian SKS that he has offered to me, unknown (to me) condition. No grenade launcher either! How do they compare to an AK 47 or 74? Thinking about a Century Arms Centurion 39 Sporter. Want/need something that's reliable but not necessarily a tack driver. Just "good enough" out to maybe 200-250 yards if I need to take out a few blue targets.