I was recently writing down some Pro's and Con's of certain cartridges that I'm contemplating changing a rifle to with a new barrel, etc... One of the cartridges I'm considering is the 6.5-284. And under the "Pro's" column I wrote down; Known accurate cartridge. After writing it down, something didn't sit right with me. I read it out loud a few times, "Known accurate cartridge... Known accurate cartridge..." Hmmm. I have no idea what makes a cartridge accurate! I know what makes most rifles accurate. But I have to admit, I have no idea what makes one cartridge more accurate over another. Or, if any characteristics of a cartridge actually does affect it's potential accuracy? I am ready to be edified. 1 - 2 - 3 - GO!!!