Overmatching - A mechanic for AP and APCR shells that allows them to penetrate thin, but well angled armor if their caliber is high enough.This decreases the effective thickness of the armor and makes it easier for AP and APCR shells to penetrate angled armor plates. Normalization - An effect that causes the angle of AP and APCR shells to decrease on impact.This value determines very little aside from overmatching, a mechanic by which AP and APCR shells can penetrate well angled, thin armor. Caliber - The diameter of the shell in centimeters, as dictated by the size of the gun's caliber.Note that damage from ricochets is currently disabled in WoT Blitz. Certain shell types have mechanics that decrease the chances of ricocheting off of thin armor, and different shell types have different minimum angles at which they ricochet. Ricocheted shells can still impact and damage tanks after bouncing, and can damage the target they originally bounce off if they impact a weak surface after bouncing (this is sometimes known as a 'shot trap' effect). Ricochet - When a shell hits an armor plate that is greater than a certain angle, the shell will bounce off of the plate and continue traveling.

The only exception to this is high explosive rounds, which can sacrifice some of the damage they do for additional penetration (see High-Explosive section). Shells will not always do the same damage every time they penetrate, but will always do within 25% of the average damage value. The damage value given in game is an average value, which is subject to a random +/- 25% modifier.

Damage - The average damage the shell does upon a penetrating hit.All types of high explosive shells have a chance to deal reduced damage if they do not at first penetrate their target. With most ammunition types, if the shell's penetration value is lower than the effective armor of the target it hits, the shell will likely fail to penetrate and do no damage. Average penetration is also subject to a random +/- 25% modifier. This penetration changes at shorter or longer ranges and to different degrees when firing certain types of ammunition. Penetration values given in the game are the shell's ability to penetrate armor at 100 meters away. Penetration - How much armor a shell can penetrate 50% of the time.These terms are important to know when analyzing ammunition types. Shells are categorized by a number of terms that describe their characteristics. 2.2 Armor Piercing Composite Rigid (APCR).

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