Full metal jacket-bullet
A <link glossary>bullet where the bullet jacket is closed towards the front.
The full-jacketed bullet belongs to the dimensionally and mass stable bullets.
It does not fragment and only deforms minimally depending on the target resistance. <link glossary>Penetration and energy release are achieved due to a late “jack-knifing” of the bullet in the target medium.
In addition to the full-jacketed bullet there is the <link glossary>deformation bullet and the <link glossary>part fragmentation bullet.