Icebreaker really doesn't need to be upgraded... there's no point in the raid where it's useful, and I don't think there's level 31+ enemies anywhere else, right?
Do you even play Destiny?
Ice Breaker is like the go to Sniper 90% of the fucking time
It's ammo refresh alone negates Juggler on NF/Weekly
Also getting it to 331 is necessary, if you haven't heard the new Raid Boss and Trash that comes along for the ride is level 32 in Crota's End
My 300 IB was doing less damage to them, you could tell that at level 30 + 300 IB it would take roughly 5 precision shots to drop the Gold level 32 Knights
Once I hit 31 and used IB, it took 4 shots, I'm guessing, 3 once it's fully leveled up and then once you hit 32, 1-2 shots easily
WOL + IB on Atheon on Hard mode nets you 17,000+ damage per precision shot
Land all 6, you rip a chunk off that trapezoid fuck