The gas-venting recoil mitigation system reduces the muzzle velocity of the 20x110mm Hispano cartridge by approximately 25%, from the original 830 metres per second to approximately 620 metres per second (from about 2,700 feet per second to about 2,000 feet per second).

factualpending

Speaker

Ian McCollum

Evidence Quote

this whole recoil mitigation system takes about 25% off the muzzle velocity of the gun. So where 20x110 Hispano was originally 830 metres per second (about 2,700 feet per second), with this setup you are getting about 620 metres per second (about 2,000 feet per second)

Source

RT20: Croatia's Insane Kludged 20mm Anti-Materiel RifleForgotten Weapons
Created: 8/13/2026, 7:43:37 AM

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