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Cartridge comparison

4.38x30mm Libra vs 4.6x30mm HK

4.38x30mm Libra and 4.6x30mm HK are both in the reference; see the full spec comparison below.

ToolOverlay 4.38x30mm Libra and 4.6x30mm HK trajectories with real loads in Ballistic Compare

Side by side

4.38x30mm Libra4.6x30mm HK
TypePistolPistol
Introduced20021999
Bullet diameter0.1685″0.1831″
Case length1.185″1.2008″
Max pressure62,366 psi58,015 psi
Recoil2.7 ft·lb0.73–0.8 ft·lb
Effective range50 yd200 yd
SAAMINot SAAMI standardizedMilitary standard
CIPNot standardizedCIP standardized
ObsoleteObsolete—

Highlighted cells hold the clear edge where both sides have a number. Every figure is a range maximum from the reference; typical loads run lower.

Case profiles, to scale

Drawn to the same scale, so the proportions are true. Physical size varies with your screen.

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