S.T.A.L.K.E.R. Wiki
The subject of this article appears in S.T.A.L.K.E.R.: Shadow of Chernobyl. The subject of this article appears in S.T.A.L.K.E.R.: Clear Sky. The subject of this article appears in S.T.A.L.K.E.R.: Call of Pripyat.

5.56x45mm SS109 is a NATO semi-armor-piercing rifle ammunition featured in the S.T.A.L.K.E.R. series.

General characteristics[]

SS109 rounds have similar performance to 5.45x39mm FMJ lead rounds, but differ in that they have a hardened steel penetrator tip. The penetrator can pierce light cover or body armor and the composite alloy slug behind it will go on through. This gives them better penetration against heavier armor, giving the player a slight edge in the late game where heavily armored stalkers are a more frequent opponent.

It is also available in 5.56x45mm AP.


This kind of ammo is used by the TRs 301, IL 86, SGI 5k, GP37 and the FT-200M. In S.T.A.L.K.E.R.: Call of Pripyat, the player can modify the AKM-74/2 to fire this caliber instead.


Shadow of Chernobyl[]

A standard NATO round widely-known under its Belgian SS109 index. It is used with the IL 86, the TRs 301, the SGI 5k, the GP 37 and the FT 200M assault rifles.

Shadow of Chernobyl in-game description

In Shadow of Chernobyl this type of ammo can be found and bought by the player, in similar ways to other ammo, after visiting the bar. While it is very rare in the Dark Valley it will sort of replace the old 5.45x39mm ammo in regions further north, making a change to a compatible weapon beneficial, but only after completing all missions in the area. It is not found or sold further south, with the rare exception of roaming expert Bandits wielding 5.56mm rifles.

They are easily found in the Wild Territory as 5.56mm rifles are the standard weapons for Mercenaries and the Bandits in the area. 60 rounds are found in a locker outside of Borov's office.

Clear Sky[]

SS109 cartridges are mostly non-existent early in the game and only become more common after the player exits the Cordon, where it is sold by most traders. It can be easily salvaged from fallen Freedom members, Mercenaries, Monolith, and veteran Loners.

Call of Pripyat[]

A standard issue NATO 5.56x45 caliber round specially designed for accurate automatic fire. Provides good ballistic characteristics, having been designed on the basis of a hunting round. Widely known under its SS109 index.

Call of Pripyat in-game description

Unlike previous games, SS109 cartridges are commonly found in all areas, but is slightly hard to actually obtain without looting dead stalkers carrying 5.56mm weapons or finding stashes. They are a bit harder to find than the more commonplace 5.45mm rounds, but still more abundant than most other munitions.

Owl sells them by default, however, unless one has done enough quests around Zaton that he'll lower his prices, he will sell a single box of SS109s at around +2000RU, which is very expensive at the start of the game.

Hawaiian also sells this type of ammo, however much like Owl's rates, unless one is friendly with Freedom or has done enough quests around Yanov,

Some boxes can be found in various stashes, such as beneath a house in the Izumrudnoye area of Zaton, and beneath a container in the Yanov northern tunnel, both found with a TRs 301.


  • On the ammo carton, the compatible weapons listed are: LR-300, LR-300SFR (LR-300 with PSO-1 scope and GP-25 Kostyor grenade launcher), G36, FN2000, MP5 (not in-game) and the SGI 552.
  • The ammunition is incorrectly referred to as the SS190 on the item's model and in the game code as ammo_5.56x45_ss190.
  • The ammo carton has the notation "525 Grn. M.C. Solid Bullets" on the lower right corner.
    • Grn indicates the weight of the bullet in grains. The NATO-standard SS109 cartridge's bullet weighs 62 grains [4.0 grams].
    • M.C. indicates that the bullet is "metallic cased", a Remington Arms term for "Full Metal Jacketed" (FMJ). The SS109's bullet is covered in a copper sheath.
    • Solid Bullets indicates that the cartridges are Ball (lead slug) ammunition and do not contain a Semi-Armor-Piercing steel penetrator or Armor-Piercing metal core.
  • The ammo carton says in the lower right corner that it holds 60 rounds.