BT
9x21mm BT gzh
Updated Nov 3, 2026, 12:30 PM
A 9x21mm Gyurza BT gzh (SP13, GRAU Index - 7BT3) cartridge with a 7.3 gram armor-piercing tracer bullet with a steel core and a two-layer semi-jacket, a lead interior and a bimetallic exterior, in a bimetallic case; intended for target designation and fire adjustment in battle (Trace color: Red). This BT bullet (Bronebóynaya Trassíruyushchaya - "Armor-piercing Tracer") was developed for 9x21mm caliber submachine guns by TsNIITochMash based on the 9x21mm PS gzh "SP10" cartridge and has superior characteristics, being able of piercing basic and intermediate ballistic body protections, as well as having a considerable stopping power effect, however, it has a high bounce probability on various surfaces.
Flea market
Not eligible for the flea market.
- Min flea level
- 0
- Low (24h)
- Not eligible
- Offers
- Not eligible
Categories
Sell to traders
Buy from traders
| Trader | Price |
|---|---|
 Prapor | 759 ₽ |
Properties
- Caliber
- 9×21
- Damage
- 52
- Armor damage
- 42
- Penetration power
- 32
- Accuracy modifier
- -0.05
- Ammo type
- bullet
- Ballistic coefficient
- 0.084
- Bullet diameter
- 9 mm
- Bullet mass
- 6.7 g
- Durability burn factor
- 1.4
- Failure To Feed Chance
- 8.2%
- Fragmentation chance
- 20.0%
- Heat factor
- 1.25
- Heavy bleed modifier
- 0
- Initial speed
- 410
- Light bleed modifier
- 0
- Misfire Chance
- 12.6%
- Penetration Chance
- 60.0%
- Penetration deviation
- 0.1
- Projectiles
- 1
- Recoil modifier
- 0.05
- Ricochet Chance
- 40.0%
- Stack size
- 100
- Stamina burn per damage
- 0.1152
- Tracer
- Yes
- Tracer color
- red