diff --git a/src/main/java/com/atsuishio/superbwarfare/client/gui/RangeHelper.java b/src/main/java/com/atsuishio/superbwarfare/client/gui/RangeHelper.java
index efd14aa44..1fae84ef2 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/gui/RangeHelper.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/gui/RangeHelper.java
@@ -12,9 +12,9 @@ public class RangeHelper {
      * @param thetaDegrees 发射角度（以度为单位），需要根据实际情况修改
      */
     public static double getRange(double thetaDegrees) {
-        double initialVelocity = 8; // 初始速度 8 m/s
+        double initialVelocity = 11.4; // 初始速度 11.4 m/s
         double thetaRadians = Math.toRadians(thetaDegrees); // 将角度转换为弧度
-        double gravity = 0.05; // 重力加速度
+        double gravity = 0.146; // 重力加速度
         double velocityDecay = 0.99; // 速度衰减系数
 
         // 计算射程
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/MortarEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/MortarEntity.java
index a31072e52..32e634730 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/MortarEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/MortarEntity.java
@@ -164,7 +164,7 @@ public class MortarEntity extends Entity implements GeoEntity, AnimatedEntity {
                 if (level instanceof ServerLevel server) {
                     MortarShellEntity entityToSpawn = new MortarShellEntity(player, level);
                     entityToSpawn.setPos(this.getX(), this.getEyeY(), this.getZ());
-                    entityToSpawn.shoot(this.getLookAngle().x, this.getLookAngle().y, this.getLookAngle().z, 8f, (float) 0.3);
+                    entityToSpawn.shoot(this.getLookAngle().x, this.getLookAngle().y, this.getLookAngle().z, 11.4f, (float) 0.1);
                     level.addFreshEntity(entityToSpawn);
                     server.sendParticles(ParticleTypes.CAMPFIRE_COSY_SMOKE, (this.getX() + 3 * this.getLookAngle().x), (this.getY() + 0.1 + 3 * this.getLookAngle().y), (this.getZ() + 3 * this.getLookAngle().z), 8, 0.4, 0.4, 0.4,
                             0.007);
@@ -212,7 +212,7 @@ public class MortarEntity extends Entity implements GeoEntity, AnimatedEntity {
         this.look(EntityAnchorArgument.Anchor.EYES, new Vec3(targetX, targetY, targetZ));
 
         double[] angles = new double[2];
-        boolean flag = RangeHelper.canReachTarget(8, 0.05, 0.99,
+        boolean flag = RangeHelper.canReachTarget(11, 0.146, 0.99,
                 new BlockPos((int) this.getX(), (int) this.getEyeY(), (int) this.getZ()),
                 new BlockPos(targetX, targetY, targetZ),
                 angles);
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/MortarShellEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/MortarShellEntity.java
index 28f33d93c..a36983290 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/MortarShellEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/MortarShellEntity.java
@@ -19,7 +19,6 @@ import net.minecraft.world.entity.EntityType;
 import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.projectile.ThrowableItemProjectile;
 import net.minecraft.world.item.Item;
-import net.minecraft.world.level.ChunkPos;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.BellBlock;
 import net.minecraft.world.level.block.state.BlockState;
@@ -179,7 +178,7 @@ public class MortarShellEntity extends ThrowableItemProjectile implements GeoEnt
 
     @Override
     protected float getGravity() {
-        return 0.05F;
+        return 0.146F;
     }
 
     @Override