The longer the tube is in relation to its bore, the higher the muzzle velocity it can generate on fixed charge.
For the Tiger II's 8.8 cm KwK 43 L/71, barrel length is 6.25 m (20 ft 6 in) generating a higher velocity.
Another five rounds were fired at targets moving at 15 miles per hour (24 km/h), and, although smoke obscured the gunners' observation, three hits were scored after directions given by the commander.
The sighting system resulted in excellent firing accuracy for the 8.8 cm KwK 36 gun on the Tiger I.
For kinetic penetration, the speed of the projectile upon impact is crucial, and the cumulative effect of air resistance decreases the velocity of the shell as the distance to the target increases.