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SP Ballistic Weapons and Ammo in mm

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#1 spector



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Posted 22 September 2013 - 08:56 PM

Ballistic Weapons and the Ammo

This is a list I’ve made to try to figure out what mm the ammo is, (too many time my players who are veteran Cyberpunk 2013, 2020 RPGers and military veterans constantly ask me and argue with each other what ammo and what they could do with it) so here I am seeking the wisdom from everyone here.  I based this on the damage that is stated and the ROF also the description.


Autogun Basic, 90m, S/3/10, 1d10+3I, 0, 30,


The way this reads it sounds like the classic 5.56mm m16 (RT era pic)/colt AR. The wh40k wikia has it as anywhere from Varies between “4 to 15 millimeters wide and 20 to 120 millimeters long” wow that’s so crazy that’s a huge difference in damage potential but ok.


Autopistol Pistol, 30m, S/–/6, 1d10+2I, 0, 18,

This I believe is the ubiquitous 9mm UZI/Mac-11/9(which is the 9mm version) or?


Hand Cannon Pistol, 35m, S/–/–, 1d10+4I, 2, 5,

This is the classic 45 Magnum I think?  A player of mine said it should be the .454 Casul or The Smith & Wesson Model 500 because those are 5 shot hand cannons.


Heavy Stubber Heavy, 120m, –/–/10, 1d10+5 I,3, 200,

This I think is the M1919 Browning is a .30 caliber medium machine gun or at least that’s what it looks like. So 308 or 30-06 round.


Naval Pistol (Mars) Pistol, 20m, S/3/–, 1d10+4 I, 0, 6,

The M1911 pistol 45 ACP I feel it would have a longer barrel for the extra power (maybe).


Naval Shotcannon Heavy, 40m, S/3/–, 2d10+4 I, 0, 24

I think its missing a Pen Value on this gun. 

Okay after seeing some YouTube vids and wiki-ing I say its 8 gauge or 4 gauge (this is a big shell).  If it was a solid slug It would knock a space marine over (maybe).


Pump-Action Shotgun Basic, 30m, S/–/–, 1d10+4 I, 0, 8

12 gauge, this is the only one that was easy.


Shotgun Basic, 30m, S/–/–, 1d10+4 I, 0, 2

Yes this is still 12 gauge


Shotgun Pistol Pistol, 10m, S/–/–, 1d10+4 I, 0, 1

Yea 12 gauge


Stub Automatic                 Pistol, 30m, S/3/–, 1d10+3 I, 0, 9

9mm again


Stub Revolver Pistol, 30m, S/–/–, 1d10+3 I, 0, 6

Ok this one is maybe a 9mm (I’m trying to be consistent)


Assault Cannon Heavy, 120m, –/–/10, 3d10+5 I, 5 200

Ok these stats are from DH IH, and they very vague on the description so according to me ill make it the GAU-19/A (yeah unfortunately this is a three barreled Gatling gun) but it still guaranteed to turn a space marine into fine mist and hands sized chunks of armor.


Autocannon Heavy, 300m, S/2/5, 4d10+5 I, 4, 20

For this one I went by weight of the gun, so I picked the 20mm even thought a lot of pictures it looks like a Browning .50 Caliber Machine Gun then again we could say it looks like The Oerlikon 20 mm cannon.

And finally the magic and heart ache happens


Dreadnought Assault Cannon, Range, 150m, –/–/10, 3d10+6 I, 6, 400

So according to the damage this would be a 50cal out of a very long barrel, but I totally disagree with the DW ROB write up, so here my version of the according to all the pictures we seen and the PC game and the size of the shells that it spites out and some YouTube videos.


Dreadnought Assault Cannon Range 250m, –/–/10, 5d10+6 I, 8, 400, Storm/Tearing/Blast 3

Based on The General Electric GAU-8/A Avenger is a 30 mm hydraulically driven seven-barrel Gatling-type cannon firing PGU-14/B API Armor Piercing Incendiary (DU) a very potent round.  So it would turn a space marine in terminator armor into dust and paste in less than 1 second. 


Ok so I also did this so I can make other guns with those damage values as a base, then you can figure out what other weapons can make with different kinds of ammo and have it make sense(at least to stick in the mud military vets role players nah JK love those vets). 


  Most of my players hate the Lasgun (although they like las pistols (go figure) they think it’s pretty weak, I told them that’s its the most common not the greatest and besides how can you hate the recharging in the sun thing.


For example


Sniper Rifle (based on M14)

M14 Rifle, 150m, S/3/7, 1d10+5 I, 3, 20

You could wiki the rest oh and super reliable.


Oh and if this was already done sorry and can you post the other thread? (i was using the search feature but got bored).

#2 Magnus Grendel

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Posted 25 September 2013 - 02:09 AM

The only things we 'know' from various bits of Forge World, Black Library, Games Workshop and Fantasy Flight publications:


Bolt Round: '75 cal' (i.e. 0.75")

Astartes/Angelus Bolt Round: 'Hundred Cal' (i.e. 1")


Accatran-Pattern Autogun (the things the Vraksian militia use): 8.75mm

There's also a calibre for the autopistol in the same image plate but I can't remember what it is.


Hand Cannon: The only make we have listed - the Tranter - is a 0.6 calibre, rather than a 0.45 or 0.50. It does, however, hit harder than a standard handcannon, so that is reasonable for 'normal' handcannons.


The 'autocannon' bracket covers everything from a fifty cal up to a non-rotary 30mm centreline on a tank, fighter or attack helicopter. I don't think you can make any real sweeping statement aside from 'you're hit, you're dead'.

#3 Santiago



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Posted 20 October 2013 - 05:18 PM



I would say the pistol yielding 1d10+3 I are .45 and the autopistol (1d10+2 I) is 9mm

Heavy Stubber would be a 30 of 50 cal and the autocannon is definately at least 20mm


#4 Spatulaodoom



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Posted 22 October 2013 - 08:59 AM

This is Warhammer 40k. Everything's over the top. The standard lasgun will "vaporize half an unarmored human body." The only reason they seem weak is because everyone has super power armor or is a bio-terror ork or tyranid. Even if you're talking about the somewhat less lethal game mechanics 1d10+3 damage has about a 50% chance of killing your average colonist.


Kick everything up a notch.


In real world terms I'd guess even the standard stub revolver would be a good .44 magnum. Call the autopistol a 10mm AE or .45, the autogun at least a nice long 7.62, and the hand cannon's a big bear .50 magnum.

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