9x21mm BT gzh

Game data: snapshot from 19.10.2026 · 3 min read

9x21mmup to armor class 3tracer

9x21mm round: damage 52, penetration 32, armor damage 42 %, velocity 410 m/s. Ranked 2 of 6 in the caliber by penetration.

Stats

In-game description

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.

Against which armor

Penetration 32 is above the resistance of class 3 armor (30) — while such armor is intact, the round penetrates it more often than not. Against class 4, penetrations are rare until the armor is worn down.

For example, the vests it can defeat: BNTI Kirasa-N body armor, 6B23-1 body armor (EMR), BNTI Zhuk body armor (Press). The full table is in the armor classes guide.

Comparison with other rounds of the same caliber

Ammo	Damage	Penetration	Armor damage	Velocity, m/s	Frag.	Armor class	Flea Market
7N42	49	38	47 %	400	10 %	3	967 ₽
9x21mm BT gzh tracer	52	32	42 %	410	20 %	3	782 ₽
7U4 subsonic	53	27	44 %	300	25 %	2	354 ₽
9x21mm PS gzh	59	22	39 %	410	20 %	2	335 ₽
9x21mm P gzh	65	18	44 %	413	30 %	1	181 ₽
PE	80	15	63 %	415	35 %	1	96 ₽

Ammo on the radar

• The enemy marker is labeled with their weapon and the distance to them: you know in advance at what range the fight will start and which ammo to load.
• A “Notify” rule for the ammo you need: when it is spotted in the raid, a notification pops up with the distance and price.

The radar map opens from a link in any browser: on a phone, tablet, laptop or second monitor. You can also share it with friends from your squad.

From 400 ₽ per dayHow the radar works

Questions and answers