A few notes about a Dr. Boom DPS test: Don't test until you're OOM, instead test for a specified amount of time, say 3-5 minutes or so. (The average length of a boss fight in T5ish content) If you find yourself OOMing in this time, even while chain chugging pots, then obviously you either need to get better pots, or you're not potting early enough.
Secondly, if you want to see if your DPS is good enough, I suggest plugging your gear into Cheeky's Spreadsheet (See the sticky for a link), and comparing it with your Dr. Boom test. Looking at your gear, 800 seems a bit low for a BM Hunter, but I could be mistaken. (I'm just eyeballing it)
I'd suggest replacing your gloves enchant with +15 agi instead. Also, kudos to you for actually looking at the enchanting rings and realizing that +weapon damage is actually more personal DPS than +stats.