Sub-caliber ammunition

Sub-caliber ammunition (also spelled subcaliber) is firearm ammunition where the projectile has a smaller diameter than the bore of the gun barrel from which it is fired. Firing sub-caliber ammunition has several potential benefits compared to full-caliber ammunition. It can for example allow for much higher muzzle velocities due to smaller lighter projectiles being fired from relatively larger propellant charges, but it can also lower the cost of ammunition due to less material being used to produce the round compared to a full-caliber ammunition etc.

Sub-caliber_ammunition

A sub-caliber armour-piercing fin-stabilized discarding sabot projectile in its sabot.

A sub-caliber armour-piercing fin-stabilized discarding sabot projectile separating from its sabot.

Several methods exist for firing sub-caliber ammunition.

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