Remove drop_item, drop_item_v, put_in_hands_or_del

code/modules/projectiles/guns/ballistic/revolver.dm

@@ -358,5 +358,5 @@
 	if(process_fire(user, user, 0, zone_override = "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_item()
+		user.drop_all_held_items()
 		user.Knockdown(80)

code/modules/projectiles/guns/ballistic/shotgun.dm

@@ -172,11 +172,11 @@
 	if(guns_left)
 		var/obj/item/gun/ballistic/shotgun/boltaction/enchanted/GUN = new gun_type
 		GUN.guns_left = guns_left - 1
-		user.drop_item()
+		user.dropItemToGround(src, TRUE)
 		user.swap_hand()
 		user.put_in_hands(GUN)
 	else
-		user.drop_item()
+		user.dropItemToGround(src, TRUE)
 	discard_gun(user)
 
 // Automatic Shotguns//

code/modules/projectiles/guns/misc/blastcannon.dm

@@ -49,12 +49,11 @@
 		if(!T.tank_one || !T.tank_two)
 			to_chat(user, "<span class='warning'>What good would an incomplete bomb do?</span>")
 			return FALSE
-		if(!user.drop_item(O))
+		if(!user.transferItemToLoc(O, src))
 			to_chat(user, "<span class='warning'>The [O] seems to be stuck to your hand!</span>")
 			return FALSE
 		user.visible_message("<span class='warning'>[user] attaches the [O] to the [src]!</span>")
 		bomb = O
-		O.forceMove(src)
 		update_icon()
 		return TRUE
 	return ..()