12.7x54mm
Encyclopedia
The 12.7×54mm Subsonic cartridge is used in the VKS bullpup
Bullpup
Bullpups are firearm configurations in which the action is located behind the trigger group and alongside the shooter's face, so there is no wasted space for the buttstock as in conventional designs. This permits a shorter firearm length for the same barrel length for improved maneuverability, and...

sniper rifle. The cartridge can carry a projectile weighing between from 59 g (911 gr) and 76 g (1173 gr), yielding massive amounts of kinetic energy. The round can penetrate up to 16mm of steel at 200 meters or heavy body armor at 100 meters. The accuracy of this cartridge is claimed as to be MOA at 100 meters range.

Cartridge variants

  • STs-130 (СЦ-130) - standard=
  • STs-130U (СЦ-130У) - for training
  • STs-130PT (СЦ-130ПТ) - increased accuracy (59 gram bullet)
  • STs-130PT2 (СЦ-130ПТ2) - increased accuracy (solid bronze bullet)
  • STs-130VPS (СЦ-130ВПС) - increased penetration (76 gram bullet)
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