diff --git a/source/core/defaults/game.hpp b/source/core/defaults/game.hpp
index a98a675..5c08046 100644
--- a/source/core/defaults/game.hpp
+++ b/source/core/defaults/game.hpp
@@ -22,6 +22,9 @@ namespace Defaults::Game {
     // (1.05F) per tolerar floating-point i petites separacions post-impuls.
     constexpr float COLLISION_SHIP_ENEMY_AMPLIFIER = 1.05F;
     constexpr float COLLISION_BULLET_ENEMY_AMPLIFIER = 1.15F;  // 115% hitbox (generous)
+    // Wounded chain: el rebot físic separa els cossos abans que arribi
+    // la detecció gameplay; amplier generós perquè el toc compti.
+    constexpr float COLLISION_WOUNDED_CHAIN_AMPLIFIER = 1.25F;
 
     // Friendly fire system
     constexpr bool FRIENDLY_FIRE_ENABLED = true;               // Activar friendly fire
diff --git a/source/game/systems/collision_system.cpp b/source/game/systems/collision_system.cpp
index 207ef10..2185b35 100644
--- a/source/game/systems/collision_system.cpp
+++ b/source/game/systems/collision_system.cpp
@@ -177,7 +177,7 @@ namespace Systems::Collision {
                 if (A_WOUNDED == B_WOUNDED) {
                     continue;  // ambos sanos o ambos heridos: nada que propagar
                 }
-                if (!Physics::checkCollision(a, b, 1.0F)) {
+                if (!Physics::checkCollision(a, b, Defaults::Game::COLLISION_WOUNDED_CHAIN_AMPLIFIER)) {
                     continue;
                 }
                 // El sano queda herido, propagando el shooter original.