extended range full bore (ERFB)

erosion of bore (in the bore)

full-bore shooting

extended-range ammunition

extended-range guided missile

extended range modified integrated system

Extended Range Guided Multiple Launch Rocket System (ER GMLRS)

joint air-to-surface stand-off missile, extended range (JASSM-ER)

HAMMER (Highly Agile Modular Munition Extended Range)

Surface-Launched Extended Range (SLX)

joint direct-attack munition - extended range (JDAM-ER)

extended endurance & range (EER)

extended-range / multipurpose unmanned aerial vehicle

full motion full mission flight simulator

extended front

ECWCS / Extended Cold Weather Clothing System

Medium Extended Air Defense System (MEADS)

extended (compound) projectile

extended magazine release

extended flap

extended visual line of sight (EVLOS)

extended-chord elevon

axis of the bore

barrel bore wear level

bore

bore brush (swab)

bore cleaner

bore diameter

centerline of the bore

helix along the axis of the bore

muzzle bore sight

rifle bore cleaner

smallbore (small-bore)