The only bad thing about this list is that it's compiled by NME, so it's mainly going to be ultra-accessible doom/stoner metal. No real "heaviest metal records of all time" is real until a Bolt Thrower album is on it. That's not bias, it's just the truth.
07/22 - Melt-Banana
07/26 - Forever Came Calling & Primitive Man
07/30 - Warped (?)
08/05 - Knockout Kid
08/07 - Fireworks (?)