Ammunition
The gun fired fixed (HEAT M66) and semi-fixed ammunition, fitted with 75mm Cartridge Case M5A1 (type II) and (type I) accordingly. The propellant charge of semi-fixed ammunition consisted of base charge and three increments, forming four different charges, from 1 (the smallest) to 4 (the largest).
HEAT M66 Shell penetrated about 91 mm of homogeneous armor at 0 degrees at any range.
| Available ammunition. | |||||
| Type | Model | Weight, kg (round/projectile) | Filler | Muzzle velocity, m/s | Range, m |
| HE | HE M48 Shell | 8.27 / 6.62 | TNT, 676 g | 381 | 8,790 |
| HE | HE M41A1 Shell | 7.89 / 6.24 | TNT, 503 g | 381 | 8,820 |
| HEAT-T | HEAT M66 Shell | 7.39 / 5.94 | 305 | 6,400 | |
| Smoke | WP M64 Shell | 8.56 / 6.91 | White phosphorus | 381 | 8,790 |
| Smoke | FS M64 Shell | 8.64 / 6.99 | Sulfur trioxide in Chlorosulfonic acid | 381 | 8,790 |
| Chemical | H M64 Shell | 8.43 / 6.78 | Mustard gas | 381 | 8,790 |
| Drill | Drill Cartridge M2A2 | – | – | ||
| Drill (simulates HE M48) | Drill Cartridge M19 | – | – | ||
| Blank | – | – | |||
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