diff --git a/Defs/Ammo/Generic/Shell_Artillery.xml b/Defs/Ammo/Generic/Shell_Artillery.xml
index 0361a05cb3..21ebf75050 100644
--- a/Defs/Ammo/Generic/Shell_Artillery.xml
+++ b/Defs/Ammo/Generic/Shell_Artillery.xml
@@ -21,6 +21,7 @@
 			<Ammo_ArtilleryShell_Incendiary>Bullet_155mmHowitzerShell_Incendiary</Ammo_ArtilleryShell_Incendiary>
 			<Ammo_ArtilleryShell_EMP>Bullet_155mmHowitzerShell_EMP</Ammo_ArtilleryShell_EMP>
 			<Ammo_ArtilleryShell_Smoke>Bullet_155mmHowitzerShell_Smoke</Ammo_ArtilleryShell_Smoke>
+			<Ammo_ArtilleryShell_Anti>Bullet_155mmHowitzerShell_Anti</Ammo_ArtilleryShell_Anti>
 		</ammoTypes>
 		<isMortarAmmoSet>true</isMortarAmmoSet>
 	</CombatExtended.AmmoSetDef>
@@ -102,6 +103,45 @@
 		<spawnAsSiegeAmmo>false</spawnAsSiegeAmmo>
 		<detonateProjectile>Bullet_155mmHowitzerShell_Smoke</detonateProjectile>
 	</ThingDef>
+	
+	<ThingDef Class="CombatExtended.AmmoDef" ParentName="HeavyMortarShellBase">
+		<defName>Ammo_ArtilleryShell_Anti</defName>
+		<label>artillery shell (Anti)</label>
+		<description>An ultra-tech artillery warhead packed with two grains of antimatter.</description>
+		<graphicData>
+			<texPath>Things/Ammo/Cannon/Howitzer/ANTI</texPath>
+			<graphicClass>Graphic_StackCount</graphicClass>
+		</graphicData>
+		<statBases>
+			<MarketValue>2100</MarketValue>
+			<Mass>24</Mass>
+			<Bulk>31.8</Bulk>
+		</statBases>
+		<thingSetMakerTags>
+			<li>RewardStandardCore</li>
+		</thingSetMakerTags>
+		<tradeTags>
+			<li>CE_AutoEnableTrade_Sellable</li>
+		</tradeTags>
+		<ammoClass>Antigrain</ammoClass>
+		<comps>
+			<li Class="CompProperties_Explosive">
+				<explosiveRadius>18.9</explosiveRadius>
+				<!-- One thirds of its projectile damage for cook-off -->
+				<damageAmountBase>436</damageAmountBase>
+				<explosiveDamageType>BombSuper</explosiveDamageType>
+				<startWickHitPointsPercent>0.7</startWickHitPointsPercent>
+				<chanceToStartFire>0.22</chanceToStartFire>
+				<damageFalloff>true</damageFalloff>
+				<explosionEffect>GiantExplosion</explosionEffect>
+				<explosionSound>Explosion_GiantBomb</explosionSound>
+				<preExplosionSpawnSingleThingDef>CraterMedium</preExplosionSpawnSingleThingDef>
+				<wickTicks>60~120</wickTicks>
+				<explodeOnKilled>True</explodeOnKilled>
+				<applyDamageToExplosionCellsNeighbors>true</applyDamageToExplosionCellsNeighbors>
+			</li>
+		</comps>
+	</ThingDef>
 
 	<!-- ==================== Recipes ========================== -->
 
diff --git a/Defs/Ammo/Shell/105mmHowitzer.xml b/Defs/Ammo/Shell/105mmHowitzer.xml
index 42eed87200..9364f214f1 100644
--- a/Defs/Ammo/Shell/105mmHowitzer.xml
+++ b/Defs/Ammo/Shell/105mmHowitzer.xml
@@ -19,6 +19,7 @@
 			<Ammo_105mmHowitzerShell_Incendiary>Bullet_105mmHowitzerShell_Incendiary</Ammo_105mmHowitzerShell_Incendiary>
 			<Ammo_105mmHowitzerShell_EMP>Bullet_105mmHowitzerShell_EMP</Ammo_105mmHowitzerShell_EMP>
 			<Ammo_105mmHowitzerShell_Smoke>Bullet_105mmHowitzerShell_Smoke</Ammo_105mmHowitzerShell_Smoke>
+			<Ammo_105mmHowitzerShell_Anti>Bullet_105mmHowitzerShell_Anti</Ammo_105mmHowitzerShell_Anti>
 		</ammoTypes>
 		<isMortarAmmoSet>true</isMortarAmmoSet>
 		<similarTo>AmmoSet_ArtilleryShell</similarTo>
@@ -131,6 +132,44 @@
 		<ammoClass>Smoke</ammoClass>
 		<detonateProjectile>Bullet_105mmHowitzerShell_Smoke</detonateProjectile>
 	</ThingDef>
+	
+	<ThingDef Class="CombatExtended.AmmoDef" ParentName="81mmMortarShellBase">
+		<defName>Ammo_105mmHowitzerShell_Anti</defName>
+		<label>105mm Howitzer shell (Anti)</label>
+		<graphicData>
+			<texPath>Things/Ammo/Cannon/Howitzer/ANTI</texPath>
+			<graphicClass>Graphic_StackCount</graphicClass>
+		</graphicData>
+		<statBases>
+			<MarketValue>1600</MarketValue>
+			<Mass>12.8</Mass>
+			<Bulk>17.3</Bulk>
+		</statBases>
+		<thingSetMakerTags>
+			<li>RewardStandardCore</li>
+		</thingSetMakerTags>
+		<tradeTags>
+			<li>CE_AutoEnableTrade_Sellable</li>
+		</tradeTags>
+		<ammoClass>Antigrain</ammoClass>
+		<comps>
+			<!-- Vanilla values -->
+			<li Class="CompProperties_Explosive">
+				<explosiveRadius>14.9</explosiveRadius>
+				<damageAmountBase>300</damageAmountBase>
+				<explosiveDamageType>BombSuper</explosiveDamageType>
+				<startWickHitPointsPercent>0.7</startWickHitPointsPercent>
+				<chanceToStartFire>0.22</chanceToStartFire>
+				<damageFalloff>true</damageFalloff>
+				<explosionEffect>GiantExplosion</explosionEffect>
+				<explosionSound>Explosion_GiantBomb</explosionSound>
+				<preExplosionSpawnSingleThingDef>CraterMedium</preExplosionSpawnSingleThingDef>
+				<wickTicks>60~120</wickTicks>
+				<explodeOnKilled>True</explodeOnKilled>
+				<applyDamageToExplosionCellsNeighbors>true</applyDamageToExplosionCellsNeighbors>
+			</li>
+		</comps>
+	</ThingDef>
 
 	<!-- ================== Projectiles ================== -->
 
@@ -278,6 +317,34 @@
 			<explosionEffect>ExtinguisherExplosion</explosionEffect>
 		</projectile>
 	</ThingDef>
+	
+	<ThingDef ParentName="Base81mmMortarShell">
+		<defName>Bullet_105mmHowitzerShell_Anti</defName>
+		<label>105mm Howitzer shell (Anti)</label>
+		<graphicData>
+			<texPath>Things/Projectile/Mortar/Antigrain</texPath>
+			<graphicClass>Graphic_Single</graphicClass>
+		</graphicData>
+		<projectile Class="CombatExtended.ProjectilePropertiesCE">
+			<damageDef>BombSuper</damageDef>
+			<!-- Same damage as 81mm shells. The justification for this is the antigrain warhead being more or less the same, a single grain of antimatter. The delivery platform is just different -->
+			<!-- Mind you, this is still crazy good. This still does 4x damage compared to 105mm HE -->
+			<damageAmountBase>800</damageAmountBase>
+			<explosionRadius>50</explosionRadius>
+			<explosionChanceToStartFire>0.22</explosionChanceToStartFire>
+			<applyDamageToExplosionCellsNeighbors>true</applyDamageToExplosionCellsNeighbors>
+			<flyOverhead>true</flyOverhead>
+			<explosionEffect>GiantExplosion</explosionEffect>
+			<soundHitThickRoof>Artillery_HitThickRoof</soundHitThickRoof>
+			<soundExplode>Explosion_GiantBomb</soundExplode>
+			<soundImpactAnticipate>MortarRound_PreImpact</soundImpactAnticipate>
+			<soundAmbient>MortarRound_Ambient</soundAmbient>
+			<preExplosionSpawnSingleThingDef>CraterMedium</preExplosionSpawnSingleThingDef>
+			<shellingProps>
+				<damage>0.85</damage>
+			</shellingProps>
+		</projectile>
+	</ThingDef>
 
 	<!-- direct fire-->
 	<ThingDef Name="Base105mmHowitzerShellDirectfire" ParentName="BaseExplosiveBullet" Abstract="true">
diff --git a/Defs/Ammo/Shell/155mmHowitzer.xml b/Defs/Ammo/Shell/155mmHowitzer.xml
index a7db854a7e..b0b073ace8 100644
--- a/Defs/Ammo/Shell/155mmHowitzer.xml
+++ b/Defs/Ammo/Shell/155mmHowitzer.xml
@@ -19,6 +19,7 @@
 			<Ammo_155mmHowitzerShell_Incendiary>Bullet_155mmHowitzerShell_Incendiary</Ammo_155mmHowitzerShell_Incendiary>
 			<Ammo_155mmHowitzerShell_EMP>Bullet_155mmHowitzerShell_EMP</Ammo_155mmHowitzerShell_EMP>
 			<Ammo_155mmHowitzerShell_Smoke>Bullet_155mmHowitzerShell_Smoke</Ammo_155mmHowitzerShell_Smoke>
+			<Ammo_155mmHowitzerShell_Anti>Bullet_155mmHowitzerShell_Anti</Ammo_155mmHowitzerShell_Anti>
 		</ammoTypes>
 		<isMortarAmmoSet>true</isMortarAmmoSet>
 		<similarTo>AmmoSet_ArtilleryShell</similarTo>
@@ -113,6 +114,45 @@
 		<detonateProjectile>Bullet_155mmHowitzerShell_Smoke</detonateProjectile>
 		<spawnAsSiegeAmmo>false</spawnAsSiegeAmmo>
 	</ThingDef>
+	
+	<ThingDef Class="CombatExtended.AmmoDef" ParentName="81mmMortarShellBase">
+		<defName>Ammo_155mmHowitzerShell_Anti</defName>
+		<label>155mm Howitzer shell (Anti)</label>
+		<description>An ultra-tech artillery warhead packed with two grains of antimatter.</description>
+		<graphicData>
+			<texPath>Things/Ammo/Cannon/Howitzer/ANTI</texPath>
+			<graphicClass>Graphic_StackCount</graphicClass>
+		</graphicData>
+		<statBases>
+			<MarketValue>2100</MarketValue>
+			<Mass>24</Mass>
+			<Bulk>31.8</Bulk>
+		</statBases>
+		<thingSetMakerTags>
+			<li>RewardStandardCore</li>
+		</thingSetMakerTags>
+		<tradeTags>
+			<li>CE_AutoEnableTrade_Sellable</li>
+		</tradeTags>
+		<ammoClass>Antigrain</ammoClass>
+		<comps>
+			<li Class="CompProperties_Explosive">
+				<explosiveRadius>18.9</explosiveRadius>
+				<!-- One thirds of its projectile damage for cook-off -->
+				<damageAmountBase>436</damageAmountBase>
+				<explosiveDamageType>BombSuper</explosiveDamageType>
+				<startWickHitPointsPercent>0.7</startWickHitPointsPercent>
+				<chanceToStartFire>0.22</chanceToStartFire>
+				<damageFalloff>true</damageFalloff>
+				<explosionEffect>GiantExplosion</explosionEffect>
+				<explosionSound>Explosion_GiantBomb</explosionSound>
+				<preExplosionSpawnSingleThingDef>CraterMedium</preExplosionSpawnSingleThingDef>
+				<wickTicks>60~120</wickTicks>
+				<explodeOnKilled>True</explodeOnKilled>
+				<applyDamageToExplosionCellsNeighbors>true</applyDamageToExplosionCellsNeighbors>
+			</li>
+		</comps>
+	</ThingDef>
 
 	<!-- ================== Projectiles ================== -->
 
@@ -266,6 +306,37 @@
 			<explosionEffect>ExtinguisherExplosion</explosionEffect>
 		</projectile>
 	</ThingDef>
+	
+	<ThingDef ParentName="Base155mmHowitzerShell">
+		<defName>Bullet_155mmHowitzerShell_Anti</defName>
+		<label>155mm Howitzer shell (Anti)</label>
+		<graphicData>
+			<texPath>Things/Projectile/Mortar/Antigrain</texPath>
+			<graphicClass>Graphic_Single</graphicClass>
+		</graphicData>
+		<projectile Class="CombatExtended.ProjectilePropertiesCE">
+			<damageDef>BombSuper</damageDef>
+			<damageAmountBase>1310</damageAmountBase>
+			<explosionRadius>56</explosionRadius>
+			<explosionChanceToStartFire>0.21</explosionChanceToStartFire>
+			<applyDamageToExplosionCellsNeighbors>true</applyDamageToExplosionCellsNeighbors>
+			<flyOverhead>true</flyOverhead>
+			<explosionEffect>GiantExplosion</explosionEffect>
+			<soundHitThickRoof>Artillery_HitThickRoof</soundHitThickRoof>
+			<soundExplode>Explosion_GiantBomb</soundExplode>
+			<soundImpactAnticipate>MortarRound_PreImpact</soundImpactAnticipate>
+			<soundAmbient>MortarRound_Ambient</soundAmbient>
+			<preExplosionSpawnSingleThingDef>CraterMedium</preExplosionSpawnSingleThingDef>
+			<shellingProps>
+				<damage>0.85</damage>
+			</shellingProps>
+		</projectile>
+		<modExtensions>
+			<li Class="CombatExtended.GenericLabelExtension">
+				<genericLabel>mortar shell (Anti)</genericLabel>
+			</li>
+		</modExtensions>
+	</ThingDef>
 
 	<!-- direct fire-->
 	<ThingDef Name="Base155mmHowitzerShellDirectfire" ParentName="BaseExplosiveBullet" Abstract="true">