4.38×30mm Libra
{{Short description|Cartridge for personal defence weapons}}
{{Notability|Product|date=June 2022}}
{{infobox firearm cartridge
|name= 4.38×30mm Libra
|image=
|caption=
|origin= Czech Republic
|type= Personal defence weapon
Pistol
|service=
|used_by=
|wars=
|designer= Vlastimil Libra
|design_date=2002
|manufacturer=Czech Weapons (ČZW)
|production_date=
|number=
|variants=
|is_SI_specs=yes
|parent=.22 Hornet
|case_type=Rimless, bottlenecked
|bullet=4.40
|land=4.28
|neck=4.90
|shoulder=6.88
|base=7.56
|rim_dia=7.65
|rim_thick=1.24
|case_length=30.10
|length=41.00
|case_capacity=
|rifling=
|primer=
|max_pressure=430
|max_cup=
|filling=
|filling_weight=
|detonation=
|yield=
|is_SI_ballistics=
|bwunit=
|bw1=45
|btype1=Spitzer
|vel1=2300
|en1=528
|bw2=
|btype2=
|vel2=
|en2=
|bw3=
|btype3=
|vel3=
|en3=
|bw4=
|btype4=
|vel4=
|en4=
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|test_barrel_length=
|balsrc= [http://sadefensejournal.com/wp/?p=172&page=2 Small Arms Defense Journal]
}}
The 4.38×30mm Libra (.17 Libra) is a centerfire cartridge designed for use in personal defense weapons.
Description
It was designed and has been manufactured by ČZW for use in their ČZW-438 PDW.Czech Weapons Product Page http://www.czechweapons.com/en/czw-438/
The cartridge is based on a .22 Hornet cartridge converted to a rimless design and necked down to .17 calibre.{{cite web|title=.17 Libra|url=http://www.municion.org/17libra/17libra.htm|work=municion.org|publisher=Munición|access-date=18 July 2013}}
=Variants=
- .17 Libra [4.38×30mm]: A rimless varmint-hunting and sport-shooting cartridge
- .17 Rimmed Libra [4.38×30mmR]: A rimmed varmint-hunting and sport-shooting cartridge for use with break-open actions
- .17 Libra Magnum [unknown]: A longer, more powerful 4.38mm rimless round for use in pistols or personal defense weapons{{citation needed|date=August 2022}}
See also
References
{{reflist}}
{{4mmcaliber}}
{{Personal defense weapons}}
{{DEFAULTSORT:4.38x30mm Libra}}
Category:Pistol and rifle cartridges
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