X-ray beams now have infinite penetration.

Every time an X-ray beam passes through an object, its damage is reduced by 2.
The beam is deleted when its damage reaches 0.

code/modules/projectiles/projectile/beams.dm

@@ -95,6 +95,7 @@ var/list/beam_master = list()
 	var/first = 1
 	var/tS = 0
 	while(src && src.loc)// only stop when we've hit something, or hit the end of the map
+		bumped = 0
 		if(first && timestopped)
 			tS = 1
 			timestopped = 0
@@ -578,8 +579,17 @@ var/list/beam_master = list()
 	name = "xray beam"
 	icon_state = "xray"
 	damage = 30
+	kill_count = 500
+	phase_type = PROJREACT_WALLS|PROJREACT_WINDOWS|PROJREACT_OBJS|PROJREACT_MOBS|PROJREACT_BLOB
+	penetration = -1
 	fire_sound = 'sound/weapons/laser3.ogg'
 
+/obj/item/projectile/beam/xray/Bump(atom/A)
+	if(..())
+		damage -= 2
+		if(damage <= 0)
+			bullet_die()
+
 /obj/item/projectile/beam/pulse
 	name = "pulse"
 	icon_state = "u_laser"