diff --git a/code/modules/projectiles/projectile/bullets.dm b/code/modules/projectiles/projectile/bullets.dm
index 292fd44034c..cc18d93d870 100644
--- a/code/modules/projectiles/projectile/bullets.dm
+++ b/code/modules/projectiles/projectile/bullets.dm
@@ -155,7 +155,7 @@
 	stun = 3
 	weaken = 3
 	penetrating = 5
-	armor_penetration = 50
+	armor_penetration = 80
 	hitscan = 1 //so the PTR isn't useless as a sniper weapon
 
 /* Miscellaneous */
diff --git a/html/changelogs/HarpyEagle-armourpen.yml b/html/changelogs/HarpyEagle-armourpen.yml
new file mode 100644
index 00000000000..28599d484f5
--- /dev/null
+++ b/html/changelogs/HarpyEagle-armourpen.yml
@@ -0,0 +1,34 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes: 
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#################################
+
+# Your name.  
+author: HarpyEagle
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+changes: 
+  - rscadd: "Adds armour penetration mechanic for projectiles and melee weapons."
+  - rscadd: "Laser carbines, LWAP, and shotgun now have a small amount of armour penetration, ballistic rifles (not SMGs) have moderate amounts, laser cannon has high armour penetration, and the PTR mostly ignores body armour."
+  - tweak: "Shotgun slugs and Z8/STS damage has been lowered slightly to accomodate for their higher penetration. In general ballistics deal less damage but have higher penetration than comparable laser weapons. Notable exception: X-Ray lasers have had their damage lowered slightly but gain very high armour penetration."
+  - rscadd: "Energy swords now have very high armour penetration. Ninja blades do less damage but ignore armour completely."