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This is a very unusual full powered battle rifle with an impossibly short barrel. Find out how this US Army prototype M4 replacement is able to achieve a high muzzle velocity in this video. It fires the very high powered 68 x 51 mm cartridge from the shortest barrel configuration that I’ve ever seen for this kind of weapon. Normally this kind of large caliber is reserved for barrels longer than at least 13 inches so that it can have enough muzzle velocity to hit targets at 800 meters. Follow Instagram for live updates: Merchandise T shirts: Email for inquires: capelluto@ Discord channel invite: So what’s different here, why does the NGSW Raptor work where others have failed? If you tried making a high powered gun with a short barrel in the past it was impossible to reach the necessary muzzle velocity from an impossibly short 8 inch barrel. But Thanks to advances in modern ammo techno
