diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 0f1c4b6..31e5e0a 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -131,14 +131,14 @@ void Bullet::OnHit(std::set<Entity*>& objects)
                     obstacle->dead = obstacle->health <= 0.01f;
                     obstacle->dead_frameno = room->frame_no;
                     if (obstacle->dead) {
+                        if (obstacle->meta->i->damage_dia() > 0.01f &&
+                            obstacle->meta->i->damage() > 0.01f) {
+                            obstacle->Explosion(this);
+                        }
                         obstacle->ClearColliders();
                         room->ScatterDrop(obstacle->pos, obstacle->meta->i->drop());
                     }
                     obstacle->BroadcastFullState();
-                    if (obstacle->meta->i->damage_dia() > 0.01f &&
-                        obstacle->meta->i->damage() > 0.01f) {
-                        obstacle->Explosion(this);
-                    }
                 }
             }
             break;
diff --git a/server/gameserver/obstacle.cc b/server/gameserver/obstacle.cc
index eb2af48..d1fe53f 100644
--- a/server/gameserver/obstacle.cc
+++ b/server/gameserver/obstacle.cc
@@ -125,31 +125,35 @@ ColliderComponent* Obstacle::GetBoxBound()
 
 void Obstacle::Explosion(Bullet* bullet)
 {
+    float old_rad = self_collider_->rad;
+    if (self_collider_) {
+        self_collider_->rad = meta->i->damage_dia();
+    }
     if (meta->i->damage_dia() > 0.01f &&
         meta->i->damage() > 0.01f) {
         std::set<Entity*> objects;
+        std::set<GridCell*> grid_list;
+        room->grid_service.GetAllCellsByXy(pos.x, pos.y, grid_list);
         for (auto& grid : grid_list) {
             for (Human* hum: grid->human_list) {
-                {
-                    if (TestCollision(hum)) {
-                        objects.insert(hum);
-                    }
+                if (TestCollision(hum)) {
+                    objects.insert(hum);
                 }
-                for (Entity* entity : grid->entity_list) {
-                    switch (entity->entity_type) {
-                    case ET_Obstacle:
-                    case ET_Building:
-                        {
-                            if (TestCollision(entity)) {
-                                objects.insert(entity);
-                            }
+            }
+            for (Entity* entity : grid->entity_list) {
+                switch (entity->entity_type) {
+                case ET_Obstacle:
+                case ET_Building:
+                    {
+                        if (entity != this && TestCollision(entity)) {
+                            objects.insert(entity);
                         }
-                        break;
-                    default:
-                        {
-                        }
-                        break;
                     }
+                    break;
+                default:
+                    {
+                    }
+                    break;
                 }
             }//end for
         }
@@ -196,5 +200,8 @@ void Obstacle::Explosion(Bullet* bullet)
 
             }
         }
-    }
+   }
+   if (self_collider_) {
+       self_collider_->rad = old_rad;
+   }
 }