diff --git a/core/src/io/anuke/mindustry/content/blocks/CraftingBlocks.java b/core/src/io/anuke/mindustry/content/blocks/CraftingBlocks.java
index 30ede8ab19..ae7796c7c5 100644
--- a/core/src/io/anuke/mindustry/content/blocks/CraftingBlocks.java
+++ b/core/src/io/anuke/mindustry/content/blocks/CraftingBlocks.java
@@ -163,14 +163,14 @@ public class CraftingBlocks extends BlockList implements ContentList{
         }};
 
         separator = new Separator("separator"){{
-            results = new Item[]{
-                null, null, null, null, null, null, null, null, null, null,
-                Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand,
-                Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone,
-                Items.tungsten, Items.tungsten, Items.tungsten, Items.tungsten,
-                Items.lead, Items.lead,
-                Items.coal, Items.coal,
-                Items.titanium
+            results = new ItemStack[]{
+                new ItemStack(null, 10),
+                new ItemStack(Items.sand, 10),
+                new ItemStack(Items.stone, 9),
+                new ItemStack(Items.copper, 4),
+                new ItemStack(Items.lead, 2),
+                new ItemStack(Items.coal, 2),
+                new ItemStack(Items.titanium, 1),
             };
             filterTime = 40f;
             itemCapacity = 40;
@@ -181,15 +181,15 @@ public class CraftingBlocks extends BlockList implements ContentList{
         }};
 
         centrifuge = new Separator("centrifuge"){{
-            results = new Item[]{
-                null, null, null, null, null, null, null, null, null, null, null, null, null,
-                Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand, Items.sand,
-                Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone, Items.stone,
-                Items.tungsten, Items.tungsten, Items.tungsten, Items.tungsten, Items.tungsten,
-                Items.lead, Items.lead, Items.lead,
-                Items.coal, Items.coal, Items.coal,
-                Items.titanium, Items.titanium,
-                Items.thorium,
+            results = new ItemStack[]{
+                new ItemStack(null, 13),
+                new ItemStack(Items.sand, 12),
+                new ItemStack(Items.stone, 11),
+                new ItemStack(Items.copper, 5),
+                new ItemStack(Items.lead, 3),
+                new ItemStack(Items.coal, 3),
+                new ItemStack(Items.titanium, 2),
+                new ItemStack(Items.thorium, 1)
             };
 
             hasPower = true;
diff --git a/core/src/io/anuke/mindustry/content/bullets/StandardBullets.java b/core/src/io/anuke/mindustry/content/bullets/StandardBullets.java
index 0c0939ac67..ac767484a7 100644
--- a/core/src/io/anuke/mindustry/content/bullets/StandardBullets.java
+++ b/core/src/io/anuke/mindustry/content/bullets/StandardBullets.java
@@ -6,19 +6,12 @@ import io.anuke.mindustry.graphics.Palette;
 import io.anuke.mindustry.type.ContentList;
 
 public class StandardBullets extends BulletList implements ContentList{
-    public static BulletType tungsten, lead, carbide, thorium, homing, tracer;
+    public static BulletType copper, carbide, thorium, homing, tracer;
 
     @Override
     public void load(){
 
-        tungsten = new BasicBulletType(3.2f, 10, "bullet"){
-            {
-                bulletWidth = 9f;
-                bulletHeight = 11f;
-            }
-        };
-
-        lead = new BasicBulletType(2.5f, 5, "bullet"){
+        copper = new BasicBulletType(2.5f, 7, "bullet"){
             {
                 bulletWidth = 7f;
                 bulletHeight = 9f;
diff --git a/core/src/io/anuke/mindustry/world/blocks/production/Separator.java b/core/src/io/anuke/mindustry/world/blocks/production/Separator.java
index 583885d450..8e6d88b942 100644
--- a/core/src/io/anuke/mindustry/world/blocks/production/Separator.java
+++ b/core/src/io/anuke/mindustry/world/blocks/production/Separator.java
@@ -6,6 +6,7 @@ import io.anuke.mindustry.content.Items;
 import io.anuke.mindustry.content.Liquids;
 import io.anuke.mindustry.entities.TileEntity;
 import io.anuke.mindustry.type.Item;
+import io.anuke.mindustry.type.ItemStack;
 import io.anuke.mindustry.world.Block;
 import io.anuke.mindustry.world.Tile;
 import io.anuke.mindustry.world.blocks.production.GenericCrafter.GenericCrafterEntity;
@@ -22,7 +23,7 @@ import io.anuke.ucore.util.Mathf;
 public class Separator extends Block{
     protected final int timerDump = timers++;
 
-    protected Item[] results;
+    protected ItemStack[] results;
     protected float filterTime;
     protected float spinnerRadius = 2.5f;
     protected float spinnerLength = 1f;
@@ -57,8 +58,8 @@ public class Separator extends Block{
         super.setStats();
 
         stats.add(BlockStat.outputItem, new ItemFilterValue(item -> {
-            for(Item i : results){
-                if(item == i) return true;
+            for(ItemStack i : results){
+                if(item == i.item) return true;
             }
             return false;
         }));
@@ -95,7 +96,22 @@ public class Separator extends Block{
 
         if(entity.progress >= 1f){
             entity.progress = 0f;
-            Item item = Mathf.select(results);
+            int sum = 0;
+            for(ItemStack stack : results) sum += stack.amount;
+
+            int i = Mathf.random(sum);
+            int count = 0;
+            Item item = null;
+
+            //TODO possible desync since items are random
+            for(ItemStack stack : results){
+                if(i >= count && i < count + stack.amount){
+                    item = stack.item;
+                    break;
+                }
+                count += stack.amount;
+            }
+
             entity.items.remove(consumes.item(), consumes.itemAmount());
             if(item != null){
                 offloading = true;