Sub-caliber round

A sub-caliber round is a round the diameter of which is significantly smaller than the barrel diameter. An expendable sabot is used to increase the diameter to the full barrel width of the firing gun.

A kinetic energy penetrator, an example of a sub-caliber round.

Sub-caliber rounds include flechettes, saboted light armor penetrators, and kinetic energy penetrator tank shells.

See also

Sub-caliber training - use of sub-caliber weapons, attachments, and/or ammunition for training with larger weapons

References