diff --git a/Resources/Prototypes/Catalog/Fills/Boxes/ammunition.yml b/Resources/Prototypes/Catalog/Fills/Boxes/ammunition.yml
index a42d653d52..06005c274f 100644
--- a/Resources/Prototypes/Catalog/Fills/Boxes/ammunition.yml
+++ b/Resources/Prototypes/Catalog/Fills/Boxes/ammunition.yml
@@ -57,27 +57,6 @@
         amount: 4
 
 # Magnum
-- type: entity
-  name: box of SMG .45 magnum magazines
-  parent: BoxMagazine
-  id: BoxMagazineMagnumSubMachineGun
-  description: A box full of SMG .45 magnum magazines.
-  components:
-  - type: StorageFill
-    contents:
-      - id: MagazineMagnumSubMachineGun
-        amount: 3
-
-- type: entity
-  name: box of SMG .45 magnum (practice) magazines
-  parent: BoxMagazine
-  id: BoxMagazineMagnumSubMachineGunPractice
-  description: A box full of SMG .45 magnum (practice) magazines.
-  components:
-  - type: StorageFill
-    contents:
-      - id: MagazineMagnumSubMachineGunPractice
-        amount: 3
 
 # Pistol
 - type: entity
diff --git a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/caseless_rifle.yml b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/caseless_rifle.yml
index f51b21e1b4..4c3207b9c5 100644
--- a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/caseless_rifle.yml
+++ b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/caseless_rifle.yml
@@ -32,25 +32,6 @@
     zeroVisible: false
   - type: Appearance
 
-- type: entity
-  id: BaseMagazineCaselessRifleShort
-  name: "caseless rifle short magazine (.25 caseless)"
-  parent: BaseMagazineCaselessRifle
-  abstract: true
-  components:
-  - type: BallisticAmmoProvider
-    proto: CartridgeCaselessRifle
-    capacity: 10
-  - type: Item
-    size: Tiny
-  - type: Sprite
-    sprite: Objects/Weapons/Guns/Ammunition/Magazine/CaselessRifle/caseless_rifle_mag_short.rsi
-    layers:
-    - state: base
-      map: ["enum.GunVisualLayers.Base"]
-    - state: mag-1
-      map: ["enum.GunVisualLayers.Mag"]
-
 - type: entity
   id: BaseMagazinePistolCaselessRifle
   name: "pistol magazine (.25 caseless)"
@@ -81,21 +62,6 @@
     zeroVisible: false
   - type: Appearance
 
-- type: entity
-  id: MagazineCaselessRifle10x24
-  name: "box magazine (.25 caseless)"
-  parent: BaseMagazineCaselessRifle
-  components:
-  - type: BallisticAmmoProvider
-    proto: CartridgeCaselessRifle
-    capacity: 99
-  - type: Sprite
-    sprite: Objects/Weapons/Guns/Ammunition/Magazine/CaselessRifle/10x24.rsi
-  - type: MagazineVisuals
-    magState: mag
-    steps: 8
-    zeroVisible: false
-
 - type: entity
   id: MagazinePistolCaselessRifle
   name: "pistol magazine (.25 caseless)"
@@ -202,51 +168,3 @@
       - state: inhand-right-mag
       - state: inhand-right-stripe
         color: "#dbdbdb"
-
-- type: entity
-  id: MagazineCaselessRifleShort
-  name: "short magazine (.25 caseless)"
-  parent: BaseMagazineCaselessRifleShort
-  components:
-  - type: BallisticAmmoProvider
-    proto: CartridgeCaselessRifle
-    capacity: 20
-  - type: Sprite
-    layers:
-    - state: base
-      map: ["enum.GunVisualLayers.Base"]
-    - state: mag-1
-      map: ["enum.GunVisualLayers.Mag"]
-  - type: Item
-    inhandVisuals:
-      left:
-      - state: inhand-left-mag
-      right:
-      - state: inhand-right-mag
-
-- type: entity
-  id: MagazineCaselessRifleShortPractice
-  name: "short magazine (.25 caseless practice)"
-  parent: BaseMagazineCaselessRifleShort
-  components:
-  - type: BallisticAmmoProvider
-    proto: CartridgeCaselessRiflePractice
-    capacity: 20
-  - type: Sprite
-    layers:
-    - state: base
-      map: ["enum.GunVisualLayers.Base"]
-    - state: mag-1
-      map: ["enum.GunVisualLayers.Mag"]
-    - state: stripe
-      color: "#dbdbdb"
-  - type: Item
-    inhandVisuals:
-      left:
-      - state: inhand-left-mag
-      - state: inhand-left-stripe
-        color: "#dbdbdb"
-      right:
-      - state: inhand-right-mag
-      - state: inhand-right-stripe
-        color: "#dbdbdb"
diff --git a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/light_rifle.yml b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/light_rifle.yml
index f56092ba1f..c94e819615 100644
--- a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/light_rifle.yml
+++ b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/light_rifle.yml
@@ -178,36 +178,3 @@
       - state: inhand-right-mag
       - state: inhand-right-stripe
         color: "#ff6e52"
-
-- type: entity
-  id: MagazineLightRifleMaxim
-  name: "pan magazine (.30 rifle)"
-  parent: BaseMagazineLightRifle
-  components:
-  - type: Tag
-    tags:
-      - MagazineLightRiflePan
-  - type: BallisticAmmoProvider
-    proto: CartridgeLightRifle
-    capacity: 96
-  - type: Sprite
-    sprite: Objects/Weapons/Guns/Ammunition/Magazine/LightRifle/maxim.rsi
-
-- type: entity
-  id: MagazineLightRiflePkBox
-  name: "PK munitions box (.30 rifle)"
-  parent: BaseMagazineLightRifle
-  components:
-  - type: Tag
-    tags:
-      - MagazineLightRifleBox
-  - type: BallisticAmmoProvider
-    proto: CartridgeLightRifle
-    capacity: 80
-  - type: Sprite
-    sprite: Objects/Weapons/Guns/Ammunition/Magazine/LightRifle/pk_box.rsi
-  - type: MagazineVisuals
-    magState: mag
-    steps: 8
-    zeroVisible: false
-  - type: Appearance
diff --git a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/magnum.yml b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/magnum.yml
index 705601870f..b3b26be0d1 100644
--- a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/magnum.yml
+++ b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Magazines/magnum.yml
@@ -14,39 +14,6 @@
         - CartridgeMagnum
     capacity: 7
 
-- type: entity
-  id: BaseMagazineMagnumSubMachineGun
-  name: SMG magazine (.45 magnum)
-  parent: BaseItem
-  abstract: true
-  components:
-  - type: Tag
-    tags:
-      - MagazineMagnumSubMachineGun
-  - type: BallisticAmmoProvider
-    mayTransfer: true
-    whitelist:
-      tags:
-        - CartridgeMagnum
-    capacity: 25
-  - type: Item
-    size: Small
-  - type: ContainerContainer
-    containers:
-      ballistic-ammo: !type:Container
-  - type: Sprite
-    sprite: Objects/Weapons/Guns/Ammunition/Magazine/Magnum/magnum_smg_mag.rsi
-    layers:
-    - state: base
-      map: ["enum.GunVisualLayers.Base"]
-    - state: mag-1
-      map: ["enum.GunVisualLayers.Mag"]
-  - type: MagazineVisuals
-    magState: mag
-    steps: 2
-    zeroVisible: false
-  - type: Appearance
-
 - type: entity
   id: MagazineMagnumEmpty
   name: pistol magazine (.45 magnum any)
@@ -170,122 +137,3 @@
       - state: inhand-right-mag
       - state: inhand-right-stripe
         color: "#540000"
-
-- type: entity
-  id: MagazineMagnumSubMachineGunEmpty
-  name: SMG magazine (.45 magnum any)
-  suffix: empty
-  parent: BaseMagazineMagnumSubMachineGun
-  components:
-  - type: BallisticAmmoProvider
-    proto: null
-  - type: Sprite
-    layers:
-    - state: base
-      map: ["enum.GunVisualLayers.Base"]
-    - state: mag-1
-      map: ["enum.GunVisualLayers.Mag"]
-  - type: Item
-    inhandVisuals:
-      left:
-      - state: inhand-left-mag
-      right:
-      - state: inhand-right-mag
-
-- type: entity
-  id: MagazineMagnumSubMachineGun
-  name: SMG magazine (.45 magnum)
-  parent: BaseMagazineMagnumSubMachineGun
-  components:
-  - type: BallisticAmmoProvider
-    proto: CartridgeMagnum
-  - type: Sprite
-    layers:
-    - state: base
-      map: ["enum.GunVisualLayers.Base"]
-    - state: mag-1
-      map: ["enum.GunVisualLayers.Mag"]
-  - type: Item
-    inhandVisuals:
-      left:
-      - state: inhand-left-mag
-      right:
-      - state: inhand-right-mag
-
-- type: entity
-  id: MagazineMagnumSubMachineGunPractice
-  name: SMG magazine (.45 magnum practice)
-  parent: BaseMagazineMagnumSubMachineGun
-  components:
-  - type: BallisticAmmoProvider
-    proto: CartridgeMagnumPractice
-  - type: Sprite
-    layers:
-    - state: base
-      map: ["enum.GunVisualLayers.Base"]
-    - state: mag-1
-      map: ["enum.GunVisualLayers.Mag"]
-    - state: stripe
-      color: "#dbdbdb"
-  - type: Item
-    inhandVisuals:
-      left:
-      - state: inhand-left-mag
-      - state: inhand-left-stripe
-        color: "#dbdbdb"
-      right:
-      - state: inhand-right-mag
-      - state: inhand-right-stripe
-        color: "#dbdbdb"
-
-- type: entity
-  id: MagazineMagnumSubMachineGunUranium
-  name: SMG magazine (.45 magnum uranium)
-  parent: BaseMagazineMagnumSubMachineGun
-  components:
-  - type: BallisticAmmoProvider
-    proto: CartridgeMagnumUranium
-  - type: Sprite
-    layers:
-    - state: base
-      map: ["enum.GunVisualLayers.Base"]
-    - state: mag-1
-      map: ["enum.GunVisualLayers.Mag"]
-    - state: stripe
-      color: "#00cd42"
-  - type: Item
-    inhandVisuals:
-      left:
-      - state: inhand-left-mag
-      - state: inhand-left-stripe
-        color: "#00cd42"
-      right:
-      - state: inhand-right-mag
-      - state: inhand-right-stripe
-        color: "#00cd42"
-
-- type: entity
-  id: MagazineMagnumSubMachineGunPiercing
-  name: SMG magazine (.45 magnum armour-piercing)
-  parent: BaseMagazineMagnumSubMachineGun
-  components:
-  - type: BallisticAmmoProvider
-    proto: CartridgeMagnumAP
-  - type: Sprite
-    layers:
-    - state: base
-      map: ["enum.GunVisualLayers.Base"]
-    - state: mag-1
-      map: ["enum.GunVisualLayers.Mag"]
-    - state: stripe
-      color: "#540000"
-  - type: Item
-    inhandVisuals:
-      left:
-      - state: inhand-left-mag
-      - state: inhand-left-stripe
-        color: "#540000"
-      right:
-      - state: inhand-right-mag
-      - state: inhand-right-stripe
-        color: "#540000"
diff --git a/Resources/Prototypes/tags.yml b/Resources/Prototypes/tags.yml
index b67ad820fd..8d6daa226c 100644
--- a/Resources/Prototypes/tags.yml
+++ b/Resources/Prototypes/tags.yml
@@ -890,9 +890,6 @@
 - type: Tag
   id: MagazineShotgun
 
-- type: Tag
-  id: MagazineMagnumSubMachineGun
-
 - type: Tag
   id: MagazinePistolSubMachineGun
 
diff --git a/Resources/migration.yml b/Resources/migration.yml
index 87a996e23b..78d9959c57 100644
--- a/Resources/migration.yml
+++ b/Resources/migration.yml
@@ -34,7 +34,7 @@ lanternextrabright: LanternFlash
 
 # 2023-08-04
 BoxMagazineLightRifleHighVelocity: BoxMagazineLightRifle
-BoxMagazineMagnumSubMachineGunHighVelocity: BoxMagazineMagnumSubMachineGun
+BoxMagazineMagnumSubMachineGunHighVelocity: null
 BoxMagazinePistolCaselessRifleHighVelocity: BoxMagazinePistolCaselessRifle
 BoxMagazinePistolHighCapacityHighVelocity: BoxMagazinePistolHighCapacity
 BoxMagazinePistolHighVelocity: BoxMagazinePistol
@@ -56,9 +56,9 @@ MagazineBoxMagnumHighVelocity: MagazineBoxMagnum
 MagazineBoxPistolHighVelocity: MagazineBoxPistol
 MagazineBoxRifleHighVelocity: MagazineBoxRifle
 MagazineCaselessRifleHighVelocity: MagazineCaselessRifle
-MagazineCaselessRifleShortHighVelocity: MagazineCaselessRifleShort
+MagazineCaselessRifleShortHighVelocity: null
 MagazineLightRifleHighVelocity: MagazineLightRifle
-MagazineMagnumSubMachineGunHighVelocity: MagazineMagnumSubMachineGun
+MagazineMagnumSubMachineGunHighVelocity: null
 MagazinePistolCaselessRifleHighVelocity: MagazinePistolCaselessRifle
 MagazinePistolHighCapacityHighVelocity: MagazinePistolHighCapacity
 MagazinePistolHighVelocity: MagazinePistol
@@ -302,11 +302,11 @@ MagazinePistolRubber: MagazinePistol
 MagazinePistolSubMachineGunRubber: MagazinePistolSubMachineGun
 MagazinePistolCaselessRifleRubber: MagazinePistolCaselessRifle
 MagazineMagnumRubber: MagazineMagnum
-MagazineMagnumSubMachineGunRubber: MagazineMagnumSubMachineGun
+MagazineMagnumSubMachineGunRubber: null
 MagazineLightRifleRubber: MagazineLightRifle
 MagazineRifleRubber: MagazineRifle
 MagazineCaselessRifleRubber: MagazineCaselessRifle
-MagazineCaselessRifleShortRubber: MagazineCaselessRifleShort
+MagazineCaselessRifleShortRubber: null
 SpeedLoaderPistolRubber: SpeedLoaderPistol
 SpeedLoaderMagnumRubber: SpeedLoaderMagnum
 MagazineBoxPistolRubber: MagazineBoxPistol
@@ -322,7 +322,7 @@ BoxMagazinePistolSubMachineGunRubber: BoxMagazinePistolSubMachineGun
 BoxMagazineLightRifleRubber: BoxMagazineLightRifle
 BoxMagazineRifleRubber: BoxMagazineRifle
 BoxMagazineCaselessRifleRubber: BoxMagazinePistolCaselessRifle
-BoxMagazineMagnumSubMachineGunRubber: BoxMagazineMagnumSubMachineGun
+BoxMagazineMagnumSubMachineGunRubber: null
 WeaponPistolMk58Nonlethal: WeaponPistolMk58
 WeaponPistolN1984Nonlethal: WeaponPistolN1984
 WeaponSubMachineGunDrozdRubber: WeaponSubMachineGunDrozd
@@ -654,6 +654,22 @@ SpawnHonkBot: SpawnMobHonkBot
 CrateFoodPizzaLarge: CrateFoodPizza
 CrateFoodSoftdrinksLarge: CrateFoodSoftdrinks
 
+# 2025-06-06
+MagazineLightRifleMaxim: null
+MagazineLightRiflePkBox: null
+MagazineCaselessRifle10x24: null
+BaseMagazineCaselessRifleShort: null
+MagazineCaselessRifleShort: null
+MagazineCaselessRifleShortPractice: null
+BaseMagazineMagnumSubMachineGun: null
+MagazineMagnumSubMachineGunEmpty: null
+MagazineMagnumSubMachineGun: null
+MagazineMagnumSubMachineGunPractice: null
+MagazineMagnumSubMachineGunUranium: null
+MagazineMagnumSubMachineGunPiercing: null
+BoxMagazineMagnumSubMachineGun: null
+BoxMagazineMagnumSubMachineGunPractice: null
+
 # 2025-06-09
 BarSignAlignTile: BarSign
 BarSignComboCafeAlignTile: BarSignComboCafe