I LOVE THORN.
It's so freaking awesome in PvE and PvP.
Yes, it's awful for reloading, on PvE it's not that bad but in PvP, the lingering damage owns. Two to four shots (body, class dependent) and I nail my opponent. I heart my Thorn.
I'm just about finished on that bounty, and it will be going on my hunter with the chain of woe perk. Stack up a couple of precision kills in a row and the reload for any hand cannon is lightening fast.
Its also got the MIDA multi tool which has a maxed out reload, that weapon combined with that perk and 27 in the mag means an almost non stop hail of bullets for PVE. Hand canons suit the hunter class so well.