Editing Autogun (section)

===Macro Cannon===
[[File:Macrocannon.jpg|280px|thumb|right|A voidcraft Macrocannon, why the Mechanicus decided it was a good idea to use slaves to manually reload a EXBOXHUGE Cannon, despite already having auto-loaders is beyond our moral understandings.]]

The [[Dakka|Biggest of the Big]]. 'Macrocannon' seems to be a catch-all for any auto-type weapon larger than a Gatling-Blaster, ranging from [[Aquila Strongpoint|fortress-mounted field artillery]] to the literally apocalyptic, cathedral-sized weapons found on [[Imperial Navy|voidcraft]]. As is clearly evident, it causes a quantity of [[Rape]] proportional to its size, but even the smallest land-based Macrocannons are capable of laying waste to mostly everything, including [[Awesome|flyers]]. It is at its basest an autocannon that fires bullets ranging in size from that of a man all the way up to the size of a [[Baneblade]], depending on the weapon's calibre (no, seriously), and since this is the Imperium, instead of an automatic reloader, they need [[Grimderp|dozens of slaves to move each bullet]] for the ship-mounted Macrocannons (heretical theories suggest this is either because it is actually cheaper for the Imperium, which is overloaded with humans and not resources, or because they are stockpiling resources, or they are cutting down on chances of daemonic incursions through humans by putting more of them in the killzone, or they are testing to see just how far people will comply with slave labor in a totalitarian state, or - most heretical of all - some suggest it is a bureaucratic screw-up with paperwork or that the AdMech doesn't know how to repair the loading cranes).

Provided yields for these weapons can go from 42 exajoules (about 5.297 times more powerful than [https://en.wikipedia.org/wiki/1960_Valdivia_earthquake the most powerful earthquake ever recorded]; a 42 exajoule earthquake would be approximately magnitude 9.98) right down to the measly [[What|15 tetrajoules]]...[[Derp|*sigh* Games Workshop never fails to surprise us]]. Seriously believe us, we know that tetrajoules isn't an official unit of measurement, but since tetra is Latin for four this essentially gives us....<s>[[Fail|4 joules]]</s> 60 joules of power....[[Herp|which is almost twice the force of a child's punch]].... Don't believe us? We got that from [[Rogue Trader (RPG)|Rogue Trader rpg: BattleFleet Koronus pg. 31 & 20]] which is quote on quote: 
:''"Look at her, son. Isn’t she a beauty? Over two hundred Vulcan mega-bolter defence turrets, '''[[Wat|fifteen tetrajoule Sunsear las-broadsides]]''', prow plating ten metres thick, the finest auspex masts in the battlefleet… And the lines on her! Fluted prow, elegant statuary… those xenos scum won’t know what hit them!” – Bosun Phineas Jhule tempts fate at the embarkation of the Fire of Heaven''
:''"The Avenger dates from an earlier period of fleet tactics, when, squadrons of grand cruisers were employed as “line-breakers.” Traditionally, they were thrown into the midst of massive fleet engagements, soaking up enemy fire while racing into the middle of enemy formations, '''[[Bullshit|then crushing their opponents at short range with tetrajoules of energy from their oversized broadsides.]]'''"
''
Yeah...we in [[/tg/]] aren't sure whether this was [[Troll|intentional]] or a [[FAIL|gross example of a severe typo.]] So...um....[[Lulz|FEAR THE 60 JOULE BROADSIDE BATTERIES!]]. The fifteen broadsides. The fuck shape is that ship? Sounds heretical. A possible explanation for this stupidity is that GW forgot that the term "quadrillion" is a thing and is using "tetrajoule" to mean 1 000 000 000 000 000 joules (as the word "billion" comes from the latin word for two, "trillion" for the latin word for three and so on.). This gives a result of 15 quadrillion joules in a broadside, which is 15 trillion times as powerful as the world's largest laser and '''over three and a half megatons''' of energy. Much better.

Jokes aside, if we use the picture to the right as a reference for size, and estimate the shell as a solid slug of density equivalent to lead, launched at a planet from geosynchronous orbit above an Earth-like planet (36,000km), you're looking at somewhere in the region of 50 Tera-Joules of energy when it strikes the ground, or slightly less than the Little Boy dropped on Hiroshima (and that's just from gravity, not including launch energy). About fifty or so of the land-based Macrocannons would equate to one ship-mounted Macrocannon, or one point of firepower in [[Battlefleet Gothic]]. Oh yes.
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