Editing Improvised explosive device (section)

====Explosively formed penetrator/projectiles (EFPs)====
[[File:Improvised explosive device explosively formed penetrator Iraq.jpg|thumb|upright|Improvised explosive device in Iraq. The [[wiktionary:Concave|concave]] copper shape on top defines an [[explosively formed penetrator]]/projectile.]]

IEDs have been deployed in the form of [[Explosively formed penetrator|explosively formed projectile]]s (EFP), a special type of [[shaped charge]] that is effective at long standoffs from the target (50 meters or more), however their accuracy is limited due to the way in which EFPs are produced.  The large "slug" projected from the explosion has no stabilization because it has no tail fins and it does not spin like a bullet from a rifle.  Without this stabilization the trajectory can not be accurately determined beyond 50 meters.  An EFP is essentially a cylindrical shaped charge with a machined concave metal disc (often copper) in front, pointed inward. The force of the shaped charge turns the disc into a high velocity slug<!-- Should have been said towards the beginning of this paragraph. -->, capable of penetrating the armor of many vehicles.