Gun and weapon caliber size

343i can you do the lore a favour and sensibly and intelligently address the caliber sizes in halo? Shadows of Reach brought me to the end of my rope when in my audio book it said the Owl, a smaller version of the pelican had a 357mm chin gun…WTF guys.

That would be a 14 inch gun or in other words the main guns of WW1 era battleships. Same can be said for ship deck guns. A sentry turrent can’t be a 50mm gun. The barrels are the size of multi story buildings. If it was 410mm or 20inch or a 50cm gun then that is more believable. Even down to the armoured vehicles and handheld guns. The Scorpion has to be up gunned to a minimum 105mm. The SMG should be a 7mm caseless as its current size is woefully weak, space magic or not.

Youtubers like installation 00 have done size re works for the lore. However this needs to be addressed. There are more than enough fans in the community who can set this right. Use the community please.

> 2533274943975523;1:
> 343i can you do the lore a favour and sensibly and intelligently address the caliber sizes in halo? Shadows of Reach brought me to the end of my rope when in my audio book it said the Owl, a smaller version of the pelican had a 357mm chin gun…WTF guys.
>
> That would be a 14 inch gun or in other words the main guns of WW1 era battleships. Same can be said for ship deck guns. A sentry turrent can’t be a 50mm gun. The barrels are the size of multi story buildings. If it was 410mm or 20inch or a 50cm gun then that is more believable. Even down to the armoured vehicles and handheld guns. The Scorpion has to be up gunned to a minimum 105mm. The SMG should be a 7mm caseless as its current size is woefully weak, space magic or not.
>
> Youtubers like installation 00 have done size re works for the lore. However this needs to be addressed. There are more than enough fans in the community who can set this right. Use the community please.

I’m pretty sure that’s a typo/misunderstanding by the writer or audiobook reader.
My guess would be the chin gun on the Owl was probably intended to be a .357, which can be fired from a rifle or a beefy pistol.
The 50mm might also be supposed to be a 50cal, which can also be fired from a rifle or a really beefy handgun.

I don’t have that book in front of me at the moment, so that guesswork is the best I can do at the moment.

The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.

> 2533274964189700;3:
> The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.

This. Can’t stand it when people don’t do the slightest bit of research and then proceed to rant online.

> 2533274849782428;4:
> > 2533274964189700;3:
> > The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.
>
> This. Can’t stand it when people don’t do the slightest bit of research and then proceed to rant online.

The tone could be improved, but I don’t think there’s anything wrong with the substance of the original post’s question. I don’t think there’s anywhere with a full official FAQ/Errata for Halo lore, and if you don’t know if something’s been answered at all, or where that answer might be, how would you know how hard to look for it? And given that the OP listened to it as an audio-book, it’s possible that it was due to limited time availability, which is a barrier to scouring the internet for answers. Additionally, isn’t the point of forums like this to interact with other fans, regardless of if they know more or less about the lore than you do?

(I’m not on twitter, so I’m among those who wouldn’t have known that it had been answered there, and that doesn’t make me any less of a fan)

I know this is totally random but… how dope would a 357mm chain gun be? Like a WWII era battleship gun with belt-fed 14in shells. Couple that with the orbital MACs and the Covies woulda been torn apart like tissue paper from the raw kinetic energy output.

> 2533274964189700;3:
> The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.

If the typo was addressed elsewhere then fair enough, however this still doesn’t address the rest of issues with caliber sizes.

> 2535435902217648;6:
> I know this is totally random but… how dope would a 357mm chain gun be? Like a WWII era battleship gun with belt-fed 14in shells. Couple that with the orbital MACs and the Covies woulda been torn apart like tissue paper from the raw kinetic energy output.

That is what the sentry guns on the side if unsc warships do. They are bigger in bore size than 14 inch guns and they are auto firing.

> 2533274849782428;4:
> > 2533274964189700;3:
> > The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.
>
> This. Can’t stand it when people don’t do the slightest bit of research and then proceed to rant online.

Cute, now if you don’t mind storing the lip and addressing the rest of the post that would be great.

> 2533274943975523;7:
> > 2533274964189700;3:
> > The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.
>
> If the typo was addressed elsewhere then fair enough, however this still doesn’t address the rest of issues with caliber sizes.

The rest of the issues I’m not really seeing the issue with. I’m unsure what you mean by ‘sentry turret’ as the sentry turret is a forerunner energy weapon, not what you seem to be talking about.

You not liking the size of the Scorpion’s or SMG’s ammo is largely a non-issue. If we’re getting into issues of realism the scorpion itself is a terribly impractical design, as has been pointed out by numerous youtubers, and not just because of its small shell size. Heck 343 even tried to fix some of these issues in h5 (whose scorpion also has a 150mm shell), much to the community’s distaste.

> 2533274943975523;8:
> > 2535435902217648;6:
> > I know this is totally random but… how dope would a 357mm chain gun be? Like a WWII era battleship gun with belt-fed 14in shells. Couple that with the orbital MACs and the Covies woulda been torn apart like tissue paper from the raw kinetic energy output.
>
> That is what the sentry guns on the side if unsc warships do. They are bigger in bore size than 14 inch guns and they are auto firing.

Where have you seen those? Because I can’t find a source for repetitive fire weapons of that size in Halo. Found this which is a collection of autocannons that don’t go above 50mm. Or the M910 or M870 Rampart point defense cannons that are only 50mm. The largest autocannon I could find was the 70mm guns found on Pelican gunships.

I may just be forgetting some lore reference, but I’m trying to find a Halopedia source or something that talks about a 14in autocannon.

> 2533274943975523;9:
> > 2533274849782428;4:
> > > 2533274964189700;3:
> > > The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.
> >
> > This. Can’t stand it when people don’t do the slightest bit of research and then proceed to rant online.
>
> Cute, now if you don’t mind storing the lip and addressing the rest of the post that would be great.

What’s cute is you being unable to appreciate the fact that Halo is 20+ year old franchise that has been worked on by thousands of people. Obviously there’s going to be a few inconsistencies here and there given how many people worked on the weapon/vehicle designs.
Most of your complaints about calibre sizes can be explained in-universe by the 500 flippin’ years humanity had to improve weapons technology. Calibres that might seem weak now how been refined to the point of performing fairly well against Covenant ground troops. Many others in this thread already have and will continue to post examples.

> 2533274964189700;10:
> > 2533274943975523;7:
> > > 2533274964189700;3:
> > > The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.
> >
> > If the typo was addressed elsewhere then fair enough, however this still doesn’t address the rest of issues with caliber sizes.
>
> The rest of the issues I’m not really seeing the issue with. I’m unsure what you mean by ‘sentry turret’ as the sentry turret is a forerunner energy weapon, not what you seem to be talking about.
>
> You not liking the size of the Scorpion’s or SMG’s ammo is largely a non-issue. If we’re getting into issues of realism the scorpion itself is a terribly impractical design, as has been pointed out by numerous youtubers, and not just because of its small shell size. Heck 343 even tried to fix some of these issues in h5 (whose scorpion also has a 150mm shell), much to the community’s distaste.

What i am referring to is the M66 sentry gun platform used on Autumn class heavy cruisers and Epoch class carriers. These are called 50mm guns but their size is that of railway guns. Though I can put pictures in my message to provide context, here is an example.

A 30mm cannon in the real world is a meaty gun, its used on all forms of armoured vehicles, aircraft and ships. It is sizable on the first two, with aircraft even being designed around the gun. However on a ship, especially larger ones, they can look quite miniscule. If you put a 30mm gun on a carrier or even an assault ship they can easily be lost in the mass as these ships are between 200-315 meters long. Now, if you take the smallest frigate during the war, the Charon, it is over 485 meters long and over 130 meters high. Yet those guns are very visible and pronounced. For that to be the case they should be at least 210mm guns. Do you understand my point?

The scorpion is a case where for more logically minded fans, it went from a fairly anemic gun, the 90mm to an artillery gun in the 150mm, which outguns the Grizzly which has 120mm. Also a significant amount of dislike was down to design not the actual armament.

> 2533274849782428;12:
> > 2533274943975523;9:
> > > 2533274849782428;4:
> > > > 2533274964189700;3:
> > > > The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.
> > >
> > > This. Can’t stand it when people don’t do the slightest bit of research and then proceed to rant online.
> >
> > Cute, now if you don’t mind storing the lip and addressing the rest of the post that would be great.
>
> What’s cute is you being unable to appreciate the fact that Halo is 20+ year old franchise that has been worked on by thousands of people. Obviously there’s going to be a few inconsistencies here and there given how many people worked on the weapon/vehicle designs.
> Most of your complaints about calibre sizes can be explained in-universe by the 500 flippin’ years humanity had to improve weapons technology. Calibres that might seem weak now how been refined to the point of performing fairly well against Covenant ground troops. Many others in this thread already have and will continue to post examples.

You are proving my point mate. We have had 20 years, the relative naivety concerning military technology isnt there any longer so making it more sensible is not a hard ask. Second the it has had loads of people work on it line makes little sense. Look at other franchises that have had massive changes to their established lore, alot of which has fundamental changes.

Also we have established their is no massive space magic when it comes to handheld weapons. Also their is this little thing called physics, 500 years isnt going to magically make a caliber size that was ineffective against humans suddenly be capable of killing massive aliens.

> 2533274943975523;1:
> 343i can you do the lore a favour and sensibly and intelligently address the caliber sizes in halo? Shadows of Reach brought me to the end of my rope when in my audio book it said the Owl, a smaller version of the pelican had a 357mm chin gun…WTF guys.
>
> That would be a 14 inch gun or in other words the main guns of WW1 era battleships. Same can be said for ship deck guns. A sentry turrent can’t be a 50mm gun. The barrels are the size of multi story buildings. If it was 410mm or 20inch or a 50cm gun then that is more believable. Even down to the armoured vehicles and handheld guns. The Scorpion has to be up gunned to a minimum 105mm. The SMG should be a 7mm caseless as its current size is woefully weak, space magic or not.
>
> Youtubers like installation 00 have done size re works for the lore. However this needs to be addressed. There are more than enough fans in the community who can set this right. Use the community please.

Troy Denning has already confirmed this was an error in editing. It’s supposed to be an M370 i.e. a 70mm gun

> 2533274943975523;14:
> > 2533274849782428;12:
> > > 2533274943975523;9:
> > > > 2533274849782428;4:
> > > > > 2533274964189700;3:
> > > > > The author already clarified this on twitter back in october, its the M370 autocannon which is 70mm.
> > > >
> > > > This. Can’t stand it when people don’t do the slightest bit of research and then proceed to rant online.
> > >
> > > Cute, now if you don’t mind storing the lip and addressing the rest of the post that would be great.
> >
> > What’s cute is you being unable to appreciate the fact that Halo is 20+ year old franchise that has been worked on by thousands of people. Obviously there’s going to be a few inconsistencies here and there given how many people worked on the weapon/vehicle designs.
> > Most of your complaints about calibre sizes can be explained in-universe by the 500 flippin’ years humanity had to improve weapons technology. Calibres that might seem weak now how been refined to the point of performing fairly well against Covenant ground troops. Many others in this thread already have and will continue to post examples.
>
> Also we have established their is no massive space magic when it comes to handheld weapons. Also their is this little thing called physics, 500 years isnt going to magically make a caliber size that was ineffective against humans suddenly be capable of killing massive aliens.

The size may not have changed, but surely you can agree that advances in propellant and bullet metallurgy can improve performances right? Especially when most rifle rounds used by the UNSC are FMJ or armour-piercing.

> 2533274943975523;8:
> > 2535435902217648;6:
> > I know this is totally random but… how dope would a 357mm chain gun be? Like a WWII era battleship gun with belt-fed 14in shells. Couple that with the orbital MACs and the Covies woulda been torn apart like tissue paper from the raw kinetic energy output.
>
> That is what the sentry guns on the side if unsc warships do. They are bigger in bore size than 14 inch guns and they are auto firing.

Please don’t post multiple time in a row. If you need to add more information or quote other users, you can edit your last post. Thanks