diff --git a/src/main/java/com/atsuishio/superbwarfare/client/overlay/AmmoBarOverlay.java b/src/main/java/com/atsuishio/superbwarfare/client/overlay/AmmoBarOverlay.java
index faae60c46..6a3116d1b 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/overlay/AmmoBarOverlay.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/overlay/AmmoBarOverlay.java
@@ -3,13 +3,10 @@ package com.atsuishio.superbwarfare.client.overlay;
 import com.atsuishio.superbwarfare.Mod;
 import com.atsuishio.superbwarfare.config.client.DisplayConfig;
 import com.atsuishio.superbwarfare.entity.vehicle.base.ArmedVehicleEntity;
-import com.atsuishio.superbwarfare.init.ModAttachments;
 import com.atsuishio.superbwarfare.init.ModItems;
 import com.atsuishio.superbwarfare.init.ModKeyMappings;
-import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.GunItem;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
-import com.atsuishio.superbwarfare.tools.AmmoType;
 import com.atsuishio.superbwarfare.tools.InventoryTool;
 import com.atsuishio.superbwarfare.tools.NBTTool;
 import com.mojang.blaze3d.vertex.PoseStack;
@@ -48,12 +45,13 @@ public class AmmoBarOverlay implements LayeredDraw.Layer {
     private static int getGunAmmoCount(Player player) {
         ItemStack stack = player.getMainHandItem();
 
+        // TODO 替换为直接使用背包弹药判断
         if (stack.getItem() == ModItems.MINIGUN.get()) {
-            return player.getData(ModAttachments.PLAYER_VARIABLE).rifleAmmo;
+            return GunData.from(stack).countAmmo(player);
         }
 
         if (stack.getItem() == ModItems.BOCEK.get()) {
-            return GunData.from(stack).maxAmmo.get();
+            return GunData.from(stack).countAmmo(player);
         }
 
         return GunData.from(stack).ammo.get();
@@ -66,25 +64,9 @@ public class AmmoBarOverlay implements LayeredDraw.Layer {
             return "";
         }
 
-        var cap = player.getData(ModAttachments.PLAYER_VARIABLE);
         if (!hasCreativeAmmo()) {
             var data = GunData.from(stack);
-            if (stack.is(ModTags.Items.LAUNCHER) || stack.getItem() == ModItems.TASER.get()) {
-                return "" + data.maxAmmo.get();
-            }
-            var ammoTypeInfo = data.ammoTypeInfo();
-            return switch (ammoTypeInfo.type()) {
-                case PLAYER_AMMO -> {
-                    var type = AmmoType.getType(ammoTypeInfo.value());
-                    assert type != null;
-
-                    yield type.get(cap) + "";
-                }
-
-                // TODO 正确计算弹药数量
-                case ITEM, TAG -> "" + data.maxAmmo.get();
-                default -> "";
-            };
+            return data.countAmmo(player) + "";
         }
 
         return "∞";
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/renderer/item/BocekItemRenderer.java b/src/main/java/com/atsuishio/superbwarfare/client/renderer/item/BocekItemRenderer.java
index 6d3df0e27..f89dfd3ea 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/renderer/item/BocekItemRenderer.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/renderer/item/BocekItemRenderer.java
@@ -91,7 +91,7 @@ public class BocekItemRenderer extends GeoItemRenderer<BocekItem> {
         }
 
         if (name.equals("jian")) {
-            bone.setHidden(GunData.from(itemStack).maxAmmo.get() == 0);
+            bone.setHidden(!GunData.from(itemStack).hasAmmo(player));
         }
 
         if (renderingArms) {
diff --git a/src/main/java/com/atsuishio/superbwarfare/event/GunEventHandler.java b/src/main/java/com/atsuishio/superbwarfare/event/GunEventHandler.java
index 27012b0e6..b074670bc 100644
--- a/src/main/java/com/atsuishio/superbwarfare/event/GunEventHandler.java
+++ b/src/main/java/com/atsuishio/superbwarfare/event/GunEventHandler.java
@@ -452,7 +452,7 @@ public class GunEventHandler {
                 }
 
                 // TODO 优化这坨判断
-                if (stack.is(ModTags.Items.LAUNCHER) && data.maxAmmo.get() == 0
+                if (stack.is(ModTags.Items.LAUNCHER) && !data.hasAmmo(player)
                         || stack.is(ModItems.SECONDARY_CATACLYSM.get()) && data.ammo.get() >= data.magazine()
                 ) {
                     startStage3 = true;
diff --git a/src/main/java/com/atsuishio/superbwarfare/event/PlayerEventHandler.java b/src/main/java/com/atsuishio/superbwarfare/event/PlayerEventHandler.java
index 1824df177..b9178fced 100644
--- a/src/main/java/com/atsuishio/superbwarfare/event/PlayerEventHandler.java
+++ b/src/main/java/com/atsuishio/superbwarfare/event/PlayerEventHandler.java
@@ -8,7 +8,6 @@ import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.GunItem;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.network.message.receive.SimulationDistanceMessage;
-import com.atsuishio.superbwarfare.tools.AmmoType;
 import com.atsuishio.superbwarfare.tools.InventoryTool;
 import com.atsuishio.superbwarfare.tools.NBTTool;
 import net.minecraft.resources.ResourceLocation;
@@ -16,7 +15,6 @@ import net.minecraft.server.level.ServerLevel;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.sounds.SoundEvents;
 import net.minecraft.sounds.SoundSource;
-import net.minecraft.tags.ItemTags;
 import net.minecraft.world.entity.EquipmentSlot;
 import net.minecraft.world.entity.ai.attributes.AttributeModifier;
 import net.minecraft.world.entity.ai.attributes.Attributes;
@@ -109,40 +107,7 @@ public class PlayerEventHandler {
                 var data = GunData.from(stack);
 
                 if (!InventoryTool.hasCreativeAmmoBox(player)) {
-                    var cap = player.getData(ModAttachments.PLAYER_VARIABLE);
-                    var ammoTypeInfo = data.ammoTypeInfo();
-                    switch (ammoTypeInfo.type()) {
-                        case PLAYER_AMMO -> {
-                            var type = AmmoType.getType(ammoTypeInfo.value());
-                            assert type != null;
-
-                            if (type.get(cap) == 0) {
-                                data.reload(player);
-                            }
-                        }
-                        case ITEM -> {
-                            // TODO 弃用maxAmmo
-                            if (data.ammo.get() == 0 && data.maxAmmo.get() == 0) {
-                                data.ammo.set(1);
-                                player.getInventory().clearOrCountMatchingItems(
-                                        p -> p.getItem().toString().equals(ammoTypeInfo.value()),
-                                        1,
-                                        player.inventoryMenu.getCraftSlots()
-                                );
-                            }
-                        }
-                        case TAG -> {
-                            // TODO 弃用maxAmmo
-                            if (data.ammo.get() == 0 && data.maxAmmo.get() == 0) {
-                                data.ammo.set(1);
-                                player.getInventory().clearOrCountMatchingItems(
-                                        p -> p.is(ItemTags.create(ResourceLocation.parse(ammoTypeInfo.value()))),
-                                        1,
-                                        player.inventoryMenu.getCraftSlots()
-                                );
-                            }
-                        }
-                    }
+                    data.reload(player);
                 } else {
                     data.ammo.set(data.magazine());
                 }
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/data/GunData.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/data/GunData.java
index 1b5ebb64d..46d98f9b8 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/data/GunData.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/data/GunData.java
@@ -67,7 +67,6 @@ public class GunData {
         stopped = new BooleanValue(data, "Stopped");
         forceStop = new BooleanValue(data, "ForceStop");
         loadIndex = new IntValue(data, "LoadIndex");
-        maxAmmo = new IntValue(data, "MaxAmmo");
         holdOpen = new BooleanValue(data, "HoldOpen");
         hideBulletChain = new BooleanValue(data, "HideBulletChain");
         draw = new BooleanValue(data, "Draw");
@@ -300,6 +299,10 @@ public class GunData {
         return new AmmoTypeInfo(AmmoConsumeType.ITEM, ammoType);
     }
 
+    public boolean hasAmmo(Player player) {
+        return countAmmo(player) > 0;
+    }
+
     public int countAmmo(Player player) {
         var info = ammoTypeInfo();
         return switch (info.type()) {
@@ -404,7 +407,6 @@ public class GunData {
     public final BooleanValue stopped;
     public final BooleanValue forceStop;
     public final IntValue loadIndex;
-    public final IntValue maxAmmo;
 
     public final BooleanValue holdOpen;
     public final BooleanValue hideBulletChain;
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/JavelinItem.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/JavelinItem.java
index e9075614c..0028489cf 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/JavelinItem.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/JavelinItem.java
@@ -106,27 +106,6 @@ public class JavelinItem extends GunItem implements GeoItem, ReleaseSpecialWeapo
         return this.cache;
     }
 
-    public static int getAmmoCount(Player player) {
-        int count = 0;
-        for (var inv : player.getInventory().items) {
-            if (inv.is(ModItems.CREATIVE_AMMO_BOX.get())) {
-                count++;
-            }
-        }
-
-        if (count == 0) {
-            int sum = 0;
-            for (int i = 0; i < player.getInventory().getContainerSize(); ++i) {
-                ItemStack itemstack = player.getInventory().getItem(i);
-                if (check(itemstack)) {
-                    sum += itemstack.getCount();
-                }
-            }
-            return sum;
-        }
-        return (int) Double.POSITIVE_INFINITY;
-    }
-
     @Override
     public Set<SoundEvent> getReloadSound() {
         return Set.of(ModSounds.JAVELIN_RELOAD_EMPTY.get(), ModSounds.JAVELIN_LOCK.get(), ModSounds.JAVELIN_LOCKON.get());
@@ -140,8 +119,6 @@ public class JavelinItem extends GunItem implements GeoItem, ReleaseSpecialWeapo
         final var tag = data.tag();
 
         if (entity instanceof Player player && selected) {
-            data.maxAmmo.set(getAmmoCount(player));
-
             if (tag.getBoolean("Seeking")) {
 
                 List<Entity> decoy = SeekTool.seekLivingEntities(player, player.level(), 512, 8);
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/M79Item.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/M79Item.java
index 3dd5a6285..b1ed53f77 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/M79Item.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/M79Item.java
@@ -20,14 +20,12 @@ import net.minecraft.core.particles.ParticleTypes;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.sounds.SoundEvent;
-import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.tooltip.TooltipComponent;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.item.ItemDisplayContext;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.Rarity;
-import net.minecraft.world.level.Level;
 import org.jetbrains.annotations.NotNull;
 import software.bernie.geckolib.animatable.GeoItem;
 import software.bernie.geckolib.animatable.instance.AnimatableInstanceCache;
@@ -35,7 +33,6 @@ import software.bernie.geckolib.animation.*;
 import software.bernie.geckolib.renderer.GeoItemRenderer;
 import software.bernie.geckolib.util.GeckoLibUtil;
 
-import javax.annotation.ParametersAreNonnullByDefault;
 import java.util.Optional;
 import java.util.Set;
 import java.util.function.Supplier;
@@ -95,38 +92,6 @@ public class M79Item extends GunItem implements GeoItem, PressFireSpecialWeapon
         data.add(idleController);
     }
 
-    public static int getAmmoCount(Player player) {
-        int count = 0;
-        for (var inv : player.getInventory().items) {
-            if (inv.is(ModItems.CREATIVE_AMMO_BOX.get())) {
-                count++;
-            }
-        }
-
-        if (count == 0) {
-            int sum = 0;
-            for (int i = 0; i < player.getInventory().getContainerSize(); ++i) {
-                ItemStack itemstack = player.getInventory().getItem(i);
-                if (check(itemstack)) {
-                    sum += itemstack.getCount();
-                }
-            }
-            return sum;
-        }
-        return (int) Double.POSITIVE_INFINITY;
-    }
-
-    @Override
-    @ParametersAreNonnullByDefault
-    public void inventoryTick(ItemStack stack, Level world, Entity entity, int slot, boolean selected) {
-        super.inventoryTick(stack, world, entity, slot, selected);
-        if (entity instanceof Player player) {
-            var data = GunData.from(stack);
-            data.maxAmmo.set(getAmmoCount(player));
-            data.save();
-        }
-    }
-
     protected static boolean check(ItemStack stack) {
         return stack.getItem() == ModItems.GRENADE_40MM.get();
     }
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/RpgItem.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/RpgItem.java
index 77058802c..4f2305353 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/RpgItem.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/RpgItem.java
@@ -98,27 +98,6 @@ public class RpgItem extends GunItem implements GeoItem, PressFireSpecialWeapon
         return this.cache;
     }
 
-    public static int getAmmoCount(Player player) {
-        int count = 0;
-        for (var inv : player.getInventory().items) {
-            if (inv.is(ModItems.CREATIVE_AMMO_BOX.get())) {
-                count++;
-            }
-        }
-
-        if (count == 0) {
-            int sum = 0;
-            for (int i = 0; i < player.getInventory().getContainerSize(); ++i) {
-                ItemStack itemstack = player.getInventory().getItem(i);
-                if (check(itemstack)) {
-                    sum += itemstack.getCount();
-                }
-            }
-            return sum;
-        }
-        return (int) Double.POSITIVE_INFINITY;
-    }
-
     @Override
     public Set<SoundEvent> getReloadSound() {
         return Set.of(ModSounds.RPG_RELOAD_EMPTY.get());
@@ -136,9 +115,6 @@ public class RpgItem extends GunItem implements GeoItem, PressFireSpecialWeapon
             }
         }
 
-        if (entity instanceof Player player) {
-            data.maxAmmo.set(getAmmoCount(player));
-        }
         data.save();
 
         super.inventoryTick(stack, world, entity, slot, selected);
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/SecondaryCataclysm.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/SecondaryCataclysm.java
index 69ccf7b51..d77dd75e1 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/SecondaryCataclysm.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/SecondaryCataclysm.java
@@ -14,7 +14,6 @@ import com.atsuishio.superbwarfare.item.gun.PressFireSpecialWeapon;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.perk.Perk;
 import com.atsuishio.superbwarfare.perk.PerkHelper;
-import com.atsuishio.superbwarfare.tools.InventoryTool;
 import com.atsuishio.superbwarfare.tools.ParticleTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.player.LocalPlayer;
@@ -149,32 +148,11 @@ public class SecondaryCataclysm extends GunItem implements GeoItem, PressFireSpe
         data.add(idleController);
     }
 
-    public static int getAmmoCount(Player player) {
-        if (InventoryTool.hasCreativeAmmoBox(player)) {
-            return (int) Double.POSITIVE_INFINITY;
-        }
-
-        int sum = 0;
-        for (int i = 0; i < player.getInventory().getContainerSize(); ++i) {
-            ItemStack itemstack = player.getInventory().getItem(i);
-            if (check(itemstack)) {
-                sum += itemstack.getCount();
-            }
-        }
-        return sum;
-    }
-
     @Override
     @ParametersAreNonnullByDefault
     public void inventoryTick(ItemStack stack, Level world, Entity entity, int slot, boolean selected) {
         super.inventoryTick(stack, world, entity, slot, selected);
 
-        if (entity instanceof Player player) {
-            var data = GunData.from(stack);
-            data.maxAmmo.set(getAmmoCount(player));
-            data.save();
-        }
-
         if (entity instanceof Player player) {
             for (var cell : player.getInventory().items) {
                 if (cell.is(ModItems.CELL.get())) {
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/special/BocekItem.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/special/BocekItem.java
index d472a4341..97e5db56a 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/special/BocekItem.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/special/BocekItem.java
@@ -4,7 +4,6 @@ import com.atsuishio.superbwarfare.Mod;
 import com.atsuishio.superbwarfare.client.renderer.item.BocekItemRenderer;
 import com.atsuishio.superbwarfare.client.tooltip.component.BocekImageComponent;
 import com.atsuishio.superbwarfare.event.ClientEventHandler;
-import com.atsuishio.superbwarfare.init.ModItems;
 import com.atsuishio.superbwarfare.init.ModPerks;
 import com.atsuishio.superbwarfare.init.ModSounds;
 import com.atsuishio.superbwarfare.item.gun.GunItem;
@@ -86,26 +85,6 @@ public class BocekItem extends GunItem implements GeoItem, ReleaseSpecialWeapon
         return this.cache;
     }
 
-    public static int getAmmoCount(Player player) {
-        int count = 0;
-        for (var inv : player.getInventory().items) {
-            if (inv.is(ModItems.CREATIVE_AMMO_BOX.get())) {
-                count++;
-            }
-        }
-
-        if (count == 0) {
-            int sum = 0;
-            for (int i = 0; i < player.getInventory().getContainerSize(); ++i) {
-                ItemStack itemstack = player.getInventory().getItem(i);
-                if (check(itemstack)) {
-                    sum += itemstack.getCount();
-                }
-            }
-            return sum;
-        }
-        return (int) Double.POSITIVE_INFINITY;
-    }
 
     @Override
     @ParametersAreNonnullByDefault
@@ -113,10 +92,6 @@ public class BocekItem extends GunItem implements GeoItem, ReleaseSpecialWeapon
         super.inventoryTick(stack, world, entity, slot, selected);
         var data = GunData.from(stack);
         final var tag = data.tag();
-        if (entity instanceof Player player) {
-            data.maxAmmo.set(getAmmoCount(player));
-            data.save();
-        }
 
         if (GunsTool.getGunIntTag(tag, "ArrowEmpty") > 0) {
             GunsTool.setGunIntTag(tag, "ArrowEmpty", GunsTool.getGunIntTag(tag, "ArrowEmpty") - 1);
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/special/TaserItem.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/special/TaserItem.java
index 083b4b720..a62d3fa41 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/special/TaserItem.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/special/TaserItem.java
@@ -113,26 +113,6 @@ public class TaserItem extends GunItem implements GeoItem, EnergyStorageItem, Pr
         return this.cache;
     }
 
-    public static int getAmmoCount(Player player) {
-        int count = 0;
-        for (var inv : player.getInventory().items) {
-            if (inv.is(ModItems.CREATIVE_AMMO_BOX.get())) {
-                count++;
-            }
-        }
-
-        if (count == 0) {
-            int sum = 0;
-            for (int i = 0; i < player.getInventory().getContainerSize(); ++i) {
-                ItemStack itemstack = player.getInventory().getItem(i);
-                if (check(itemstack)) {
-                    sum += itemstack.getCount();
-                }
-            }
-            return sum;
-        }
-        return (int) Double.POSITIVE_INFINITY;
-    }
 
     @Override
     @ParametersAreNonnullByDefault
@@ -140,11 +120,6 @@ public class TaserItem extends GunItem implements GeoItem, EnergyStorageItem, Pr
         super.inventoryTick(stack, world, entity, slot, selected);
         var data = GunData.from(stack);
 
-        if (entity instanceof Player player) {
-            data.maxAmmo.set(getAmmoCount(player));
-            data.save();
-        }
-
         int perkLevel = data.perk.getLevel(ModPerks.REGENERATION);
 
         var stackStorage = stack.getCapability(Capabilities.EnergyStorage.ITEM);
diff --git a/src/main/java/com/atsuishio/superbwarfare/network/message/send/FireMessage.java b/src/main/java/com/atsuishio/superbwarfare/network/message/send/FireMessage.java
index 231daeb8e..868e36506 100644
--- a/src/main/java/com/atsuishio/superbwarfare/network/message/send/FireMessage.java
+++ b/src/main/java/com/atsuishio/superbwarfare/network/message/send/FireMessage.java
@@ -9,7 +9,6 @@ import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.GunItem;
 import com.atsuishio.superbwarfare.item.gun.ReleaseSpecialWeapon;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
-import com.atsuishio.superbwarfare.item.gun.special.BocekItem;
 import com.atsuishio.superbwarfare.perk.AmmoPerk;
 import com.atsuishio.superbwarfare.perk.Perk;
 import io.netty.buffer.ByteBuf;
@@ -67,11 +66,7 @@ public record FireMessage(int msgType, double power, boolean zoom) implements Cu
         } else if (type == 1) {
             // 松开开火
             if (stack.getItem() instanceof ReleaseSpecialWeapon releaseSpecialWeapon) {
-                if (releaseSpecialWeapon instanceof BocekItem) {
-                    releaseSpecialWeapon.fireOnRelease(player, data, power, zoom);
-                } else {
-                    releaseSpecialWeapon.fireOnRelease(player, data, 0, zoom);
-                }
+                releaseSpecialWeapon.fireOnRelease(player, data, power, zoom);
             }
         }
         cap.sync(player);
diff --git a/src/main/java/com/atsuishio/superbwarfare/network/message/send/ReloadMessage.java b/src/main/java/com/atsuishio/superbwarfare/network/message/send/ReloadMessage.java
index a5292b38e..c82427cde 100644
--- a/src/main/java/com/atsuishio/superbwarfare/network/message/send/ReloadMessage.java
+++ b/src/main/java/com/atsuishio/superbwarfare/network/message/send/ReloadMessage.java
@@ -61,10 +61,7 @@ public record ReloadMessage(int msgType) implements CustomPacketPayload {
                     assert ammoType != null;
 
                     if (ammoType.get(cap) == 0) return;
-                } else if ((ammoTypeInfo.type() == GunData.AmmoConsumeType.ITEM || ammoTypeInfo.type() == GunData.AmmoConsumeType.TAG)
-                        // TODO 弃用maxAmmo
-                        && data.maxAmmo.get() == 0
-                ) {
+                } else if ((ammoTypeInfo.type() == GunData.AmmoConsumeType.ITEM || ammoTypeInfo.type() == GunData.AmmoConsumeType.TAG) && !data.hasAmmo(player)) {
                     return;
                 }
             }
diff --git a/src/main/java/com/atsuishio/superbwarfare/network/message/send/ShootMessage.java b/src/main/java/com/atsuishio/superbwarfare/network/message/send/ShootMessage.java
index af5c54e29..270e7595c 100644
--- a/src/main/java/com/atsuishio/superbwarfare/network/message/send/ShootMessage.java
+++ b/src/main/java/com/atsuishio/superbwarfare/network/message/send/ShootMessage.java
@@ -97,7 +97,7 @@ public record ShootMessage(double spread, boolean zoom) implements CustomPacketP
         } else if (stack.is(ModItems.MINIGUN.get())) {
             var cap = player.getData(ModAttachments.PLAYER_VARIABLE).watch();
 
-            if (cap.rifleAmmo > 0 || InventoryTool.hasCreativeAmmoBox(player)) {
+            if (data.hasAmmo(player) || InventoryTool.hasCreativeAmmoBox(player)) {
                 tag.putDouble("heat", (tag.getDouble("heat") + 0.1));
                 if (tag.getDouble("heat") >= 50.5) {
                     tag.putDouble("overheat", 40);
@@ -124,7 +124,7 @@ public record ShootMessage(double spread, boolean zoom) implements CustomPacketP
 
                 GunEventHandler.gunShoot(player, data, spared, false);
                 if (!InventoryTool.hasCreativeAmmoBox(player)) {
-                    cap.rifleAmmo = cap.rifleAmmo - 1;
+                    data.consumeAmmo(player, 1);
                     player.setData(ModAttachments.PLAYER_VARIABLE, cap);
                     cap.sync(player);
                 }