The Zen Arms 7.5 x 40 mm Assault Rifle cartridge is an intermediate-power cartridge for use in the Zen Automatic Rifle Compact Type 39.
Bottlednecked brass casing with a pointed, boat-tail bullet, either a full-Durandium jacket ('B'), Durandium-core (AP), or hollow-tip (PE).
| Damage Rating | Tier 2, Medium Anti-Personnel ('B'), (PE), (AP) |
|---|---|
| Damage Description | (B)all rounds enter soft target, tumble; harder targets impacted, penetrated |
| (A)rmor (P)iercing rounds enter soft target, penetrate; harder targets impacted, jacket shed, penetrate armor | |
| Anti-(PE)rsonnel rounds enter soft target, mushroom and tumble or shatter; harder targets impacted, minimal damage | |
| Round Weights | |
| (B)all | 125 grains / 8.1 g |
| (A)rmor (P)iercing | 155 grains / 10 g |
| Anti-(PE)rsonnel | 118 grains / 7.64 g |