Can someone explain how the details of boss ability ranges vs our ability ranges works?
Background: I recently beat Rage Winterchill; as others have said, this is pretty easy once you outrange his ice block attack. However, checking wowhead, I note that it has a range of 40 yards - just as (most of) my shots do. I gather that it is still possible to outrange him roughly because his hit box is significantly larger than mine? Even if this is true: Is anyone able to quantify what's going on here more precisely? Can we generally say that we're able to out-range abilities which have the same nominal range as our abilities? Is it possible to manipulate this situation by shrinking/growing our (or their) models using the various means of doing so?

So far I have killed solo:

Molten Core:
Clear (80)

Kara:
Clear (80)

Magtheridon:
Clear

SSC:
Lurker down.
Leotheras the Blind down. Hard fight. Used (7/31/3) MM spec with turtle pet. In WW phase spam MD and dps. In demon form I got around 7 stacks and used FD till he was back in normal form.
Morogrim Tidewalker down.

Naxx:
Noth, heigan, loatheb, sapphiron, anub'rekhan, (almost Grand Widow Faerlina)

Tried Marrowgar but died to bonespike early.
Tried onyxia10 but p2 is a pain.

Stonecore N: slab + ozruk (no mount yet)

Noth down.
Gear : 2T5
Spec : MM but all spec are good.
Pet : Turtle
Strat : Tank the boss in the middle, and go of opposite where the add pop ( ImageShack® - Online Photo and Video Hosting ) and when they are in melee, fd to reset them. ( ImageShack® - Online Photo and Video Hosting ).

Have somebody already tried Marrowgar as a non worg/gob by going on max range and use Distracting shot right before the bonespike?

After 5tries i killed him with that tactic. thank you sir . At my 3rd try i failed at the enrage with 11000dps. At my 5th try i had 11486dps and killed him exactly at the enrage (which was after 10min 6sec).

P.S. Im Draenei

Here's a solo Maulgar kill, since a couple of people were asking. Honestly it's a pretty easy fight -- Maulgar and his adds have very low health (~250k for adds, ~500k for maulgar). Just kill the healer first, using silencing shots and readiness to interrupt heals as needed. After that I just killed Maulgar. The most important thing for keeping the adds off you is to throw out a bunch of MD's and multishots. Basically the same concept you would use for soloing Magtheridon. Video is a little sloppy as it was my first time trying the boss so I only did 1 or 2 pulls beforehand.

Maulgar Solo

Also, for those who were having problems with Leotheras -- Stand at max range when he is in demon form and you won't be hit with the fire blasts.

Even after watching the vid, I have absolutely no Idea how you have done it. I keep wiping 'cause the trash either CCs me or gets aggro, then kills me. Could you explain how you aviodet that? I watched your vid multiple times but I dont get it...

Has anyone found a way to solo Ley-guardian Eregos in Heroic Oculus? I tried him a few times last night and I was able to get him to around 60% on a red drake, but as soon as the drake dies you are basically dead because his hits do about 10k arcane damage and the whelps do around 6k. Also depending on positioning, my pet was not really able to attack any of them.

I saw a video of a DK that killed him by pulling him down to the instance entrance, but when I try to do that he just despawns.

I was thinking about stacking some arcane resist and going back, but if my pet is not able to grab the whelps I think it's not going to make much difference.

You should try it with a 7/31/3-Skillset, so you get the Extra-Healing from Chimera Shot and Spirit Bond. Then you just use AotF and try to evade those nasty AE of him whilst running all the time, stopping just a few moments to autoshot now and then.

I don't think having any particular spec matters. The first time I killed him, I was BM with a spirit beast. Last week, I did it as SV with a cat. I don't think I took a single point of damage the entire fight as I was constantly circling him in AotF with stutter-stepping for Auto Shot and FD. He does no damage if you avoid the arcane orbs, so just stay on the move and you won't need any form of self heals.

Put a weight on strafing and do you rotation. Just without autoshots. It's MUCH easyier than magtheridon since you don't have to handl adds.

I would prefer strafing with aotf and a bm specc over everything else since you can do enough damage (iirc in my vid it was 7,6k or something) And you don't have wwatch for omen/aggrro with a tanking pet.

And strafing has a additional advantage:
You aren't silenced. so you can mend your pet throughout the fight.