The Effectiveness of the HDB Hunting Bullet
Featuring a closed hollow point, three internal
notches for positive controlled expansion, and a special anti-friction
surface lacquer the HDB comes in pure copper monobloc construction.
It typically rapidly mushroomes to an 1,5 to 2,0 diameter of its caliber,
even under very flat angles of impact. Thanks to its uniform deformation
the projectile will pass the game body without remarkable deflection.
Starting at about 2,5 cm after penetration, the energy transfer increases
continuously to culminate at 25 - 30 cm (depending on the bullet's caliber
and velocity) and than continues de facto equal. At the same time the
projectile achieves its final degree of expansion. When tested by shooting
at gelatin blocks and other simulation materials the recovered HDBs
without exception showed residual weights of > 97 % of the original
weight. Thanks to its enormous penetration capability, the HDB in most
cases will pass a game body with leaving a small exit hole behind. The
only very few stuck residuals dug-out from game bodies weighted a minimum
98 % of the original bullets. Irrespective of game size and possible
bone hits the new projectile always performs trusty.