you've just described the exceptions not the rule Advenence is exactly correct for most of the legendary weapons. The Devil You Don't from expansion 1 = Revelator from expansion 2 here's a database where you can sort by weapon attributes http://db.planetdestiny.com/items/weapons/primary/handcannon?sort=aim&desc=1&tier=24 if you sort by Rate of Fire, you can see handcannons fall into 1 of 3 categories: 1) RoF = 19, Impact = 94 handcannons 2) RoF = 22, Impact = 81 handcannons 3) RoF = 32, Impact = 68 handcannons everything else is just small tweeks for differrentiation