.366 TKM
Overview
.366 TKM is a rifle cartridge developed from the Soviet 7.62x39mm. .366 TKM was developed for the Russian civilian market, where smoothbore firearms are considered shotguns. However it is still very much a rifle round, some loading such as the Deri and Geksa loads outperform 7.62x39 greatly.
Stats
| Ammunition Type | Damage | Bullet Velocity (m/s) | Barrier Penetration | Armor Piercing |
| Deri | 10 | 610 | 1.85 | 4 |
| EKO | 9.2 | 770 | 2.5 | 4 |
| Geksa | 11.2 | 550 | 1.15 | 4 |
| FMJ | 9.6 | 580 | 2.3 | 4 |
| Birdshot | 2.4x85 | 240 | 0.3 | 0 |
Note: Barrier penetration represents the rounds ability to go through walls and barriers. Armor piercing represents the rounds ability to penetrate body armor plates.