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Comments by "" (@neutronalchemist3241) on "CMMG Banshee: The Unique Radial Delayed Blowback System" video.
Actually the bolt head and the bolt carrier moves at the same time, but at different speed. The 45% inclined surfaces force the carrier to accelerate at double the speed of the bolt head and, to accelerate a mass at double the speed in the same time, you need four time the energy. Like lever delayed and roller delayed, radial delayed replaces the mass of the bolt with the speed of a part of it.
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