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FN markets the 5.7 mm curled as FN Five seveN being able to penetrate and incapacitate an enemy, but there defaulter been controversy over these claims
- Conventional hollow point bullets rely on expansion to contrive a large bruise channel, but the Five-seveN's charge is designed to hit, travel a few inches, then tumble deadline over prong without deforming.
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FN be developed the just out 5.7x28mm cartridge for its FN P90 personal defense weapon to meet NATO requirements released in 2000
- Subsequently FN play the Five-seveN pistol to advance agencies who adopt the P90, which is a side arm chambered for the same cartridge.