The Radically Invasive Projectile (R.I.P) is a type of expanding projectile created by the G2 Research company in 2014. Re-inventing the bullet: ammunition manufacturer shows off deadly new round for self-defense use January 27, 2014. Stephen Dethrage. Alabama Media Group It is meant to possess higher penetration capability and velocity than other expanding rounds. R.I.P Ballistics Sheet G2 Research Currently, it is available for common handgun calibers from .380 ACP to .45 ACP. For rifles, it is only usable with subsonic centerfire cartridges from .223 Remington to .308 Winchester. For shotguns, only a 12-gauge slug is offered.
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