6,761
edits
Changes
From Warhammer 40k - Lexicanum
no edit summary
[[File:Heavy Bolter - Astartes MK IVc.jpg|right|thumb|Heavy bolter, with Belt Feed]]
Bolt weapons fire caseless{{Fn|20}} self-propelled mass-reactive shells munitions known as ''bolts'' at hypersonic velocities{{Fn|21}}<sup>[[Bolt weapon#Cased vs Caseless|[Conflicting Sources]]]</sup>, which are timed to explode just after penetration for maximum lethality. The standard bolt is .75 calibre with a super-dense metallic core and [[diamantine]] tip. Overall bolt ammunition is expensive and difficult to manufacture and the weapons themselves regularly require maintenance and rituals to appease their spirits, but they are no doubt terrifying and destructive weapons.{{Fn|1}}
Each bolt is contained within a cartridge which includes a small conventional powder charge. When fired, this charge launches the bolt while simultaneously igniting its solid fuel propellant, which is timed to do so once it is clear of the barrel. The cartridge is then ejected, clearing the breech for the next round, while the bolt accelerates towards the target under its own power. This system helps alleviate the problem in using rocket-propelled munitions, as the gases are not trapped within the barrel and cannot cause problems due to over-pressure. The two-stage process also keeps the weapon's recoil to manageable levels, compared to conventional weapons of similar calibre.{{Fn|4}}
The Tech-Priests of the [[Adeptus Mechanicus]] have developed many types of bolter ammunition over the millennia. The most common variants are:
*'''Standard Bolts''' comprise the following components: Outer casing, propellant base, main charge, mass reactive detonator cap, depleted deuterium core, diamantine tip. The standard bolter shell is standardized at .75 caliber, whereas heavy bolter rounds are larger, at 1.00 Cal.{{CME}}*'''Hellfire Rounds''' have devastating results on organic matter, as the rounds are developed to combat [[Tyranids]]. The core and tip are replaced with a vial of mutagenic acid with thousands of needles that fire into target upon the shattering of the vial, pumping the acid into the target. Heavy Bolters can also utilise a large calibre version known as a [[Hellfire Shell]], sometimes carried by [[Scouts]].{{CME}}*'''Stalker Silenced Shells''' are rounds with low sound signatures, meant for covert fighting and used in conjunction with an M40 targeting system and an extended barrel and stock on a bolter to produce a sniping weapon system. A solidified mercury slug replaces the mass-reactive warhead for lethality at sub-sonic projectile speed. A gas cartridge also replaces both the propellant base and main charge for silent firing.{{CME}}
*'''[[Asphyx Shell]]s''' were created by the [[Thousand Sons]] during the [[Great Crusade]]. Originally as simple projectile ammunition for use against [[Psychneuein]] on [[Prospero]], these psycho-reactive toxic shells were used in their elite units. However they were difficult to mass produce and thus their deployment was limited.{{Fn|18}}
*'''Inferno Bolts''' are designed to immolate their targets and destroy them with superheated chemical fire. The deuterium core is replaced with an oxy-phosphorus gel, known as Promethium. It should be noted that the [[Chaos Space Marine]] [[Thousand Sons]] have their own similarly-named but unrelated type of inferno bolts, which are actually psychically-bound slugs that release arcane energies; these slugs explode with sorcerous energies upon impact.{{CME}}*'''Dragonfire Rounds''' are similar to Inferno Bolts, but contain superheated gas instead of Promethium. They are effective against enemies hidden behind cover as the superheated pocket of gas expands and immolate the foe even as they hide.{{CME}}*'''Odysseus Bolts''' are bolts which are psychically impregnated. Fired into large objects, the distinctive signature of the bolt can then be tracked through the Warp by an Astropath.{{CME}}*'''Metal Storm Frag Shells''' are best against multiple lightly-armoured targets. They detonate before impact and spray shrapnel, shredding their victims. A proximity detonator replaces the mass-reactive cap, and the diamantine tip and deuterium core are replaced with an increased charge and fragmentation casing. They are similar to flak rounds and are used against clusters of enemies.{{CME}}*'''Kraken Pattern Penetrator Rounds''' are powerful armour-piercing rounds. The deuterium core is replaced by a solid adamantine core and uses a heavier main charge. Upon impact, the outer casing peels away and the high velocity adamantium needle accelerates into the victim, where the larger detonator propels shards of super hardened metal further into the wound. These are effective against heavily-armoured infantry.{{CME}}*'''Vengeance Rounds''' utilise unstable flux-core technology for lethal penetrative power, and are highly effective at anything up to and including Power Armour. The trade off is that the rounds have a shorter range than standard bolts and the flux-core's unstable nature makes it hazardous to the firer, not unlike a Plasma weapon.{{CME}}
*'''Gas-Powered Bolts''' are propelled only by the gas expelled from the barrel. As they lack the secondary rocket ignition, they are substantially more quiet than standard bolt rounds. As a result, they are used for stealth operations.{{Fn|8}}
*'''Tempest Bolts''' incorporate tiny [[plasma]] shock generators that emit electromagnetic and thermal radiation when the shell detonates. Produced only on [[Mars]], Tempest shells are noted as particularly effective against machines and mechanical targets.{{CME}}
*'''Bloodshard Bolts''' are ammunition used by the [[Blood Angels]] for their '''Angelus boltguns'''. Its payload of razor-filament is very effective against most armours.{{Fn|12}}
*'''Banestrike Bolts''' are mysterious shells believed to have been developed in secret by the [[Alpha Legion]] during the [[Great Crusade]]. Their sole purpose seems to have been to breach the [[ceramite]] [[Power Armour]] of [[Space Marine]]s. It was used openly for the first time at the [[Drop Site Massacre]] where they proved devastating{{Fn|11}}. The ammo was also infamously used by the [[Sons of Horus]] in various sizes{{Fn|19a}}{{Fn|19b}}. Known weapons that the Sons of Horus used the ammo in, included the modified [[Banestrike Fusilade]] [[bolt pistol]]s{{Fn|19a}} and [[Banestrike Bolt Cannon]]s.{{Fn|19b}}
*'''Tranquilizer Rounds''' are a rare variety of boltgun ammunition. As the name suggests, they are filled with a powerful tranquilizing agent in lieu of explosives. Silent when fired from a [[Stalker Bolter]], a single shot is capable of incapacitating a full-grown Ork. Issued one to a magazine, Tranquilizer Rounds saw service with [[Raven Guard]] forces seconded to the [[Deathwatch]] during the [[War of the Beast]] in mid-M32.{{Fn|14}}
*'''Vortex Bolts''' were crafted long ago in forgotten times. These immensely rare rounds create miniature vortices within the target upon detonation. Such an event causes catastrophic damage to even the largest enemies and [[psyker]]s who miraculously survive are driven mad by the creatures of the Warp that pour from the tear in reality.{{Fn|16}}
==Conflicting Sources==
{{Trivia}}
===Cased vs Caseless===
Even as of 2025, there has been somewhat of a longstanding conflict between Boltguns being cased or caseless.
According to [[Liber Astartes (3rd Edition)]]{{fn|21}} as well as [[Liber Astartes (2nd Edition)]], bolt weapons fire caseless ammunition.{{fn|24}}
This is in stark contrast to the numerous depictions, statements, and portrayals of bolt weapons clearly ejecting spent cases:
<gallery mode="nolines" heights="100" widths="150">
Markman's Honour DWRB.jpg|[[Marksman's Honour]], made from spent cases fired by [[Roboute Guilliman]]
Magnir's Crag Bridge.jpg|Spent cases liter the ground at the [[Battle of Magnir’s Crag]]
Bolt Shells Boltgun Game.jpg|Bolt cases from [[Warhammer 40,000: Boltgun]]
Bolt Shells2.gif|Bolt cases from [[Astartes (Animation)]]
Bolt Shells 2mb.gif|Bolt cases from [[Warhammer 40,000: Space Marine 2]]
</gallery>
According to [[Andy Chambers]] in an interview:
{{QuoteBox
|quote = "Bloody Bolters! 'Mass-Reactive Caseless Ammuntion' says it right there in 40k, [[Warhammer 40,000: Rogue Trader|Rogue Trader]], right from the get go: caseless. What do artists always do with boltguns? Cases flying everywhere! Because it looks awesome, alright. Anybody whose seen particularly late 80-90s action movies - 'Dakka-dakka-dakka' brass flying everywhere - knows its one of those things that conveys kinetic violence happening. So when it comes to doing a static image that you're trying to show a guy firing a big rapid fire gun of course an artist is going to reach for having casings flying out of it or it's a heavy battle so there's loads of brass on the ground and things like that, because it's a visual key for people to clue into even subconsciously about what's happening. So actually 'caseless' was useless as a term to describe them because it fought against what the art wanted to do. So eventually we kind of lampshaded it basically, or I did, and wrote in that they use a little kind of like sabot thing to launch them out of the barrel kind of like RPG-7s do. So at that point it's fine, I no longer have to shout at artists whenever I see brass coming out of bolters cause it's fine, we need it, and it looks good."{{Fn|25}}
|align = center
|width = 40em
}}
''External Link:'' [https://youtu.be/ZUL_XW8KDvk?t=1544 Interview with Andy Chambers and Bill King]
==See also==
*{{Endn|22}}: [[The Master of Mankind (Novel)]] (e-version), Chapter Six
*{{Endn|23}}: [https://web.archive.org/web/20250821104524/https://www.warhammer-community.com/en-gb/articles/xASHGiPG/lore-of-the-leagues-ancient-quasi-divine-machine-intellects-make-for-decent-gunsmiths-it-turns-out/ Warhammer Community: Lore of the Votann – Ancient Quasi-divine Machine Intellects Make for Decent Gunsmiths, it Turns Out (posted 20/5/2022)] ''(archived from [https://www.warhammer-community.com/en-gb/articles/xASHGiPG/lore-of-the-leagues-ancient-quasi-divine-machine-intellects-make-for-decent-gunsmiths-it-turns-out/ the original], last accessed 21 August 2025)''
*{{Endn|24}}: [[Liber Astartes (3rd Edition)]], pg. 320*{{Endn|25}}: [https://youtu.be/ZUL_XW8KDvk?t=1544 Andy Chambers and Bill King in conversation]
[[Category:Weapons (Bolt)| ]]
[[de:Boltwaffen]]
[[fr:Arme à Bolts]]