I got this gun as a random drop this week, and I was going to throw it away... but I noticed Bungie did something different with it.
The weapon now has slightly higher impact and lower fire rate; it's now more in line with auto-rifles like the Shingen-E or Up For Anything, which I remember being pretty popular in the Crucible before the auto-rifle nerf.
I'm gonna re-roll this thing to try and get Rangefinder; but I'm still hoping they'll buff auto-rifles soon so I can get the most out of this gun. That last nerf in Patch 1.1.1 was taking it too far.
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I rolled mine with Focus fire, reinforced barrel, and counterbalance. If I were you, I'd try to get both rangefinder and focus fire