Don't reroll you old iron banner weapons (Destiny)
It doesn't boost the atk of them so it would be a waste.
Don't reroll you old iron banner weapons
by Korny 
, Dalton, Ga. US. Earth, Sol System, Tuesday, December 16, 2014, 12:19 (3871 days ago) @ Master NOODLE
It doesn't boost the atk of them so it would be a waste.
This has been made clear on another thread. Either way, re-rolling can give you a nice perk or two, and the 300 damage doesn't matter in Crucible, so it wouldn't be a "waste" unless you end up with lousy perks.