перешкода руху снаряда в каналі ствола
erosion of bore (in the bore)
obstruction
obstruction light
boundary obstruction light
terrain obstruction
unmarked aerodrome obstruction
junction aid (obstruction aid)
obstruction aid (junction aid)
nonexplosive obstruction
axis of the bore
barrel bore wear level
bore
bore brush (swab)
bore cleaner
bore diameter
centerline of the bore
extended range full bore (ERFB)
helix along the axis of the bore
muzzle bore sight
rifle bore cleaner
smallbore (small-bore)
smooth-bore (smoothbore)
smooth-bore artillery
bore guide
big bore
bore corner
bore gauge
bore leading
bore premature
bore sight
bore sighter
bore surface