Designed 2002 Parent case .22 Hornet | Designer Vlastimil Libra Manufacturer Czech Weapons (ČZW) | |
![]() | ||
Type Personal defence weapon |
The 4.38×30mm Libra (.17 Libra) is a centerfire cartridge designed for use in personal defense weapons. It was designed and has been manufactured by ČZW for use in their ČZW-438.
The cartridge is based on a .22 Hornet cartridge converted to a rimless design and necked down to .17 calibre. The .17 Libra has been standardized by C.I.P. to a pressure of 4300 bar.

References
4.38×30mm Libra Wikipedia(Text) CC BY-SA