The Grom ("thunder") is the main gun of the BMP-1 infantry fighting vehicle. It is a low-pressure gun which fires rocket-propelled shells, which are similar to the ones used by the SPG-9 recoiless rifle and the RPG-7 (GURPS High-Tech, p. 148-149).
In addition to HEAT (in table, $200), HE (Dmg 6d×2(0.5) pi+ with a 6d×3 [4d−1] cr ex follow-up, Rng 1,500/5,000, $150) becomes available in 1974.
GUNNER (CANNON) (DX−4 or other Gunner at −4)
| TL | Weapon | Damage | Acc | Range | Weight | RoF | Shots | ST | Bulk | Rcl | Cost | LC | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7 | 2A28 Grom | 6d×4(10) cr ex | 3+2 | 5,000 | 254/7.7 | 1/8 | 40(40i) | 28M | −8 | 2 | $10k | 1 | |
| linked | 6d×2 cr ex |