minor bug fix, also inhand sprites

code/modules/projectiles/ammunition/special/syringe.dm

@@ -27,6 +27,7 @@
 	desc = "A high-power spring, linked to an energy-based piercing synthesiser."
 	projectile_type = /obj/item/projectile/bullet/dart/piercing
 	firing_effect_type = null
+	var/dartvolume = 10
 
 /obj/item/ammo_casing/chemgun/ready_proj(atom/target, mob/living/user, quiet, zone_override = "")
 	if(!BB)
@@ -38,7 +39,7 @@
 		if (CG.vial == null)
 			CG.syringes_left--
 			return
-		CG.vial.reagents.trans_to(BB,10)
+		CG.vial.reagents.trans_to(BB, dartvolume)
 		BB.name = "chemical dart"
 		CG.syringes_left--
 	..()
@@ -50,21 +51,7 @@
 	projectile_type = /obj/item/projectile/bullet/dart/syringe/dart
 	firing_effect_type = null
 	harmful = FALSE
-
-/obj/item/ammo_casing/chemgun/smart/ready_proj(atom/target, mob/living/user, quiet, zone_override = "")
-	if(!BB)
-		return
-	if(istype(loc, /obj/item/gun/chem/smart))
-		var/obj/item/gun/chem/smart/CG = loc
-		if(CG.syringes_left <= 0)
-			return
-		if (CG.vial == null)
-			CG.syringes_left--
-			return
-		CG.vial.reagents.trans_to(BB,20)
-		BB.name = "smart chemical dart"
-		CG.syringes_left--
-	..()
+	dartvolume = 20
 /obj/item/ammo_casing/dnainjector
 	name = "rigged syringe gun spring"
 	desc = "A high-power spring that throws DNA injectors."