diff --git a/OpenRA.Game/Traits/Health.cs b/OpenRA.Game/Traits/Health.cs
index e18596f0b2..7924cd5608 100755
--- a/OpenRA.Game/Traits/Health.cs
+++ b/OpenRA.Game/Traits/Health.cs
@@ -17,7 +17,8 @@ namespace OpenRA.Traits
 	public class HealthInfo : ITraitInfo, UsesInit<HealthInit>
 	{
 		public readonly int HP = 0;
-		public readonly float Radius = 10;
+		[Desc("Physical size of the unit used for damage calculations.  Impacts within this radius apply full damage")]
+		public readonly WRange Radius = new WRange(426);
 		public virtual object Create(ActorInitializer init) { return new Health(init, this); }
 	}
 
diff --git a/OpenRA.Mods.RA/Combat.cs b/OpenRA.Mods.RA/Combat.cs
index cc620e9923..34166b6f70 100755
--- a/OpenRA.Mods.RA/Combat.cs
+++ b/OpenRA.Mods.RA/Combat.cs
@@ -192,7 +192,7 @@ namespace OpenRA.Mods.RA
 			var rawDamage = (float)warhead.Damage;
 			if (withFalloff)
 			{
-				var distance = (int)Math.Max(0, (target.CenterPosition - pos).Length * Game.CellSize / 1024 - healthInfo.Radius);
+				var distance = Math.Max(0, (target.CenterPosition - pos).Length - healthInfo.Radius.Range) * Game.CellSize / 1024;
 				var falloff = (float)GetDamageFalloff(distance / warhead.Spread);
 				rawDamage = (float)(falloff * rawDamage);
 			}
diff --git a/OpenRA.Mods.RA/CombatDebugOverlay.cs b/OpenRA.Mods.RA/CombatDebugOverlay.cs
index 10721b1bc8..29d50c0580 100755
--- a/OpenRA.Mods.RA/CombatDebugOverlay.cs
+++ b/OpenRA.Mods.RA/CombatDebugOverlay.cs
@@ -42,10 +42,7 @@ namespace OpenRA.Mods.RA
 				return;
 
 			if (health.Value != null)
-			{
-				var range = new WRange((int)(health.Value.Info.Radius * 1024 / Game.CellSize));
-				wr.DrawRangeCircle(self.CenterPosition, range, Color.Red);
-			}
+				wr.DrawRangeCircle(self.CenterPosition, health.Value.Info.Radius, Color.Red);
 
 			var wlr = Game.Renderer.WorldLineRenderer;
 			var c = Color.White;