The 30-30 had been obsolete 3 years before it was introduced. But even though it was a step backwards in cartridge development it works very well if used within it's limitations. But I've never understood why I'd want to limit myself.
It may be a 200 yard cartridge, but a 308 will have 2X-3X more energy at 500 yards than a 30-30 at 200. My bolt guns are lighter, more compact and far more accurate with about the same recoil.
