He Shoots, He Ores

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• Soloable?: NO.
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• Minimum 2 player, Suggested 3 player or more.
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• Minimum character level 100, Suggested MAX level.
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Where?:
Blackrock Foundry Raid (Draenor, Gorgrond)

What?:
Deposit the Volatile Ore in the Ore Grinder, and then defeat Oregorger in Blackrock Foundry on Normal difficulty or higher.

When?:
You can do this Achievment when boss is rolling around. (Phase 2, boss energy/mana runs out 0)

How?:

1. 
   
2. Engage boss and wait for his energy to run out.
3. 
   
4. Pick up Volatile Ore and throw to another standing player in range. (Aim at their feet).
5. 
   
6. Repeat until Volatile Ore reach the deposit area.
7. 
   
8. At the deposit area the character holding the ore he can "use/interact" the Ore Grinder, use. (cogwheel icon. DON'T THROW)
9. 
   
10. Kill boss.
11. 
    

Additional info:
Ore Throw range is 15 yards.
When you hold ore you are silenced and immobilized.
If boss rolls over you while holding ore, you loose the ore.
If you lose the ore you must reset/wipe and try again.
Boss will roll where boxes get destroyed by player.
Warlock Gateway portal etc doesn't work.

Credits to all who posted comment here and for the images also.

We did this achievement tonight and took us quite some tries.
- We had 3 people assigned to throw around the ore, while the rest kills crates. Don't kill crates too fast, or Oregorger enters phase 1 again. To receive credit for this achievement you need to be in phase 2 or you failed the credit.
- There is a hole in the wall on the left of the entrance, which becomes clickable if you have the ore in your hands. You have to stand fairly close to it and CLICK the hole (it becomes an object). Keep in mind that if you get hit by Oregorger while carrying the ore, it will be destroyed.
- If the ore gets destroyed, there won't spawn a new one, so you have to wipe. The range of the throw is about 15 yards.
- If you track the achievement, it will turn white when you received credit, you are then able to kill the boss for the actual achievement.

The Volatile Ore in the achievement is located on the far back wall from the entrance to the Oregorger fight's room next to the giant hole in the wall that he leaps through upon clearing the trash. It looks like a regular blackrock ore vein embedded in the wall.

This ore is ONLY clickable during Phase 2 as the boss is rolling around, it will give an "invalid target" error during the phase where he is attacking directly. Upon clicking the ore, you are given an extra action button to throw the ore to a targeted location on the ground, but you are also rooted in place. You must pass the ore off to another raider nearby and have them do the same thing (Think Ji-Kun's golden egg achievement when it comes to passing the ore combined with the tainted elemental cores from Lady Vashj).

While unconfirmed by my raid, the ore grinder in question for the achievement appears to be a lava bucket on the left-side wall in the upper corner near where there is a small incline between the two far wall paths.
EDIT: See Jeremybell's comment, the ore grinder is a hole in the wall to the left of the entrance as an object similar to the ore itself. In other words, it's on the exact opposite end of the room from where you begin.
You have to pass the volatile ore from raider to raider to get close enough to that bucket and have that raider throw the ore into it (like a free-throw, hence the likelihood of the name being related to the manner that the achievement is done in the end with the grinder). However, as the rolling frenzy is going on during this phase, you must kill ore crates in other areas from the path that the ore is being thrown down to prevent the players from being run over as it is highly likely that the ore will detonate and destroy itself if the boss collides with the player holding it. The ore does NOT respawn if it is dropped in any form, so you only have one shot per pull.

Remember after all of this that you still have to defeat the boss to get the achievement, so don't think you failed it even after doing the ore portion correctly.