Underrated rounds? Well, I think the most probably underrated round is the .22 long rifle. For its size it's unbelievably powerful. Taylor in his book, African Rifles and Cartridges, stated that "I would happily undertake to walk thru from Cape Town to Cairo armed with nothing nut a scope sighted .22 Rim-Fire and a powerful handgun, and I am quite confident I would not go hungry." That's high praise coming from a man who has shot over 1,000 elephant and untold other DG in his lifetime. Another underrated cartridge at least in America is the 6.5x55 Swede. Anyone who has ever used one cannot but laud its virtues and killing power. The .35 bores are overlooked as to effectiveness. The .358 Win and .350 Rem Mag are most effective on heavy NA game out to 150 yds. Most underrated by many. It seems that any round that does not have a ton of energy at 300 yds is not effective to most hunters when the facts dictate differently.