nikolas93TS
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Joined: 2/24/2017
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APDamage value is the initial penetration at muzzle, at 0°, and playing out with AP_DamageRange input will give you various penetration values over different distances. Those ranges are to be compared with historical penetration data (usually given at 500m, 1000m, 2500m etc.) until you get as realistic values as possible. Lower AP_DamageRange value means penetration loss over distance will be more pronounced.
In Research forum you can download Armour Penetration Calculator, which is an algorithm we use to calculate armor penetration over different ranges.
As for 3BM22, in game it currently penetrates 460mm at muzzle, and around 400mm at 2km. Indeed, there are sources that gives slightly higher values (420-430mm, but there is also Bauman Moscow State Technical University Ammunition Manual from 2016 that gives 470mm @ 0° at 2km). However, as mentioned, using steel equivalency is a fairly inefficient way of presenting armour, as the interaction between each armour type and penetrator type are unique, and trying to shoehorn the provided protection into one single value against all different types of APFSDS ammo is flawed.
In the specific case of 3BM22, its performance on monolithic homogeneous steel armour is likely to be the same as advertised (aligning with the different numbers provided by different sources), but its performance on complex composite armour of similar mass will invariably be less. The outdated design of the 3BM22 penetrator with a tungsten carbide slug at the tip is known to be highly susceptible to complex armour arrays that incorporate spaced plates, particularly if the array is set at an angle. Like 3BM15, the brittle tungsten carbide slug is susceptible to shattering and the steel penetrator rod can be broken apart with relative ease by a heavy spaced NERA array. As such, any attempts to compare the penetration power of 3BM22 in RHAe against the reported protection level of modern tanks with composite armour will invariably lead to an incorrect conclusion.
3BM22 in-game will punch with ease through any tank with monolithic homogeneous steel armour, will have a chance against early Leopard 2 (hull) and early M1 (hull and turret) but will struggle with anything more modern. That bode well with both Western and Soviets reports, despite having lower RHAe penetration than usually advertised.
< Message edited by nikolas93TS -- 6/25/2019 7:16:02 PM >
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Soviet/Russian AP rounds - 
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