System of Bi-Modular propellant charges (BMCS) for 155 mm canon howitzers.
- Universal for all projectile types of 155 mm
- In compliance with Joint Ballistic Memorandum of Understanding (JBMoU)
- Applied in all firearm systems with the barrel length of 45 and 52 calibres or in older systems with the barrel length of calibre 39 (maximally 5xTC-F)
- Temperature range of use from -50 °C to +63 °C
- Fully combustible case of propellant charges
- Water resistant
- Limited wear of barrel
- Lowered flame at muzzle
- For automatic and manual loading
Bi-Modular Charging System (BMCS) consists of 2 (two) types of modules different in marking, colour, shape, and a visible black stripe.
- BC-E is used for short distances (Zones 1-2)
- TC-F is used for long distances (Zones 3-6)
| BC-E | TC-F | |
| Diameter | 158 mm | 158 mm |
| Length | 155 mm | 177 mm |
| Modules can be joined | NO | 6 x TC-F |
| Type of powder charge | Single base powder | Triple base powder |
| Additives | YES | YES |
| Ignition | CBI + black powder | CBI + black powder |
| Approx. cartridge weight | 1.9 kg | 2.8 kg |
| Approx. powder charge weight | 1,500 g | 2,400 g |
| Shelf life | >15 years when stored in the original undamaged packaging (at the average temperature of +25 °C) | |