diff --git a/code/modules/projectiles/gun.dm b/code/modules/projectiles/gun.dm
index 8efb7ce9e1..8f52f26936 100644
--- a/code/modules/projectiles/gun.dm
+++ b/code/modules/projectiles/gun.dm
@@ -159,7 +159,7 @@
 			if (user.has_disability(DISABILITY_CLUMSY) && prob(40))
 				to_chat(user, "<span class='userdanger'>You shoot yourself in the foot with [src]!</span>")
 				var/shot_leg = pick("l_leg", "r_leg")
-				process_fire(user,user,0,params, zone_override = shot_leg)
+				process_fire(user, user, FALSE, params, shot_leg)
 				user.dropItemToGround(src, TRUE)
 				return
 
@@ -178,9 +178,9 @@
 			else if(G.can_trigger_gun(user))
 				bonus_spread += 24 * G.weapon_weight
 				loop_counter++
-				addtimer(CALLBACK(G, /obj/item/gun.proc/process_fire, target, user, 1, params, null, bonus_spread), loop_counter)
+				addtimer(CALLBACK(G, /obj/item/gun.proc/process_fire, target, user, TRUE, params, null, bonus_spread), loop_counter)
 
-	process_fire(target,user,1,params, null, bonus_spread)
+	process_fire(target, user, TRUE, params, null, bonus_spread)
 
 
 
@@ -437,7 +437,7 @@
 	if(chambered && chambered.BB)
 		chambered.BB.damage *= 5
 
-	process_fire(target, user, 1, params)
+	process_fire(target, user, TRUE, params)
 
 /obj/item/gun/proc/unlock() //used in summon guns and as a convience for admins
 	if(pin)
diff --git a/code/modules/projectiles/guns/ballistic.dm b/code/modules/projectiles/guns/ballistic.dm
index 786486eea9..c16c5f0fc0 100644
--- a/code/modules/projectiles/guns/ballistic.dm
+++ b/code/modules/projectiles/guns/ballistic.dm
@@ -159,7 +159,7 @@
 		sleep(25)
 		if(user.is_holding(src))
 			var/turf/T = get_turf(user)
-			process_fire(user, user, 0, zone_override = "head")
+			process_fire(user, user, FALSE, null, "head")
 			user.visible_message("<span class='suicide'>[user] blows [user.p_their()] brain[user.p_s()] out with [src]!</span>")
 			var/turf/target = get_ranged_target_turf(user, turn(user.dir, 180), BRAINS_BLOWN_THROW_RANGE)
 			B.Remove(user)
@@ -215,7 +215,7 @@
 	. = 0
 	for(var/obj/item/ammo_casing/AC in magazine.stored_ammo)
 		if(AC.BB)
-			process_fire(user, user,0)
+			process_fire(user, user, FALSE)
 			. = 1
 
 
diff --git a/code/modules/projectiles/guns/ballistic/revolver.dm b/code/modules/projectiles/guns/ballistic/revolver.dm
index aefa7826a0..4e9da3b22d 100644
--- a/code/modules/projectiles/guns/ballistic/revolver.dm
+++ b/code/modules/projectiles/guns/ballistic/revolver.dm
@@ -351,7 +351,7 @@
 /obj/item/gun/ballistic/revolver/reverse/can_trigger_gun(mob/living/user)
 	if((user.has_disability(DISABILITY_CLUMSY)) || (user.mind && user.mind.assigned_role == "Clown"))
 		return ..()
-	if(process_fire(user, user, 0, zone_override = "head"))
+	if(process_fire(user, user, FALSE, null, "head"))
 		user.visible_message("<span class='warning'>[user] somehow manages to shoot [user.p_them()]self in the face!</span>", "<span class='userdanger'>You somehow shoot yourself in the face! How the hell?!</span>")
 		user.emote("scream")
 		user.drop_all_held_items()
diff --git a/code/modules/projectiles/guns/ballistic/shotgun.dm b/code/modules/projectiles/guns/ballistic/shotgun.dm
index e74b90922d..6382b231a8 100644
--- a/code/modules/projectiles/guns/ballistic/shotgun.dm
+++ b/code/modules/projectiles/guns/ballistic/shotgun.dm
@@ -44,7 +44,7 @@
 /obj/item/gun/ballistic/shotgun/blow_up(mob/user)
 	. = 0
 	if(chambered && chambered.BB)
-		process_fire(user, user,0)
+		process_fire(user, user, FALSE)
 		. = 1
 
 /obj/item/gun/ballistic/shotgun/proc/pump(mob/M)