Accuracy values for the main guns - MBT's.

[Mobhack]

JaM said:
I found something strange. Im trying to find better accuracy ratings for guns, but during my tests i found that Firecontrol rating do only a minor bonus to accuracy.During my tests i tryed gun with acc 20, rangefinder 30 and firecontrol 0. i had accuracy at 2000m (target size 4) 64%. When i rised FC at 20,it rised accuracy to 70%, FC 40 made up to 76%. So only +6% at 2000m with 20 point Fire Control.Isnt it too low?

As noted in the mobhack help - FC is mainly to do with accuracy against moving targets. It adds a little effect similar to RF as well.

If your targets were not moving, then you will not expect to notice much FC effect..

Andy

[Mobhack]

Some figures (range figures, so well above combat ones)

Source: Isby "Weapons And Tactics of the Soviet Army" (1981)

T-62 static shooter vs M60A1 sized target, US Army Range Test results
@ 500/1000/1500/2000/2500/3000 metres
BR-5 APFSDS, Stadia RF, 1st shot 98/79/50/27/14/8
BR-5 APFSDS, Stadia RF, 1st shot 94/75/33/19/8/nil(moving target)
BR-5 APFSDS, Stadia RF, 2nd shot 98/94/66/51/40/32
BR-5 APFSDS, laser RF, 1st shot 98/86/60/43/20/10
BK-4M HEAT, Stadia RF, 1st shot 89/69/33/11/3/3
BK-4M HEAT, Stadia RF, 1st shot 75/30/5/nil/nil/nil (moving target)

BR-5 APFSDS penetration (mm at 0 degrees)
350/300/285/270/245/215 (71% kill probability om M60A1 if penetrated)

BK-4M HEAT - 432mm at any range, Pk is 75% if penetrated (M60A1)


T-72
unspecified APFSDS, Laser RF, 1st shot 98/94/70-80/50-60/40+/35+

Penetration figure - like the to-hit - is an estimate and is ignored.

T-55

D-10 gun
BR-412 APC 90/50/33/8/4/nil
BK-5M HEAT 84/43/25/2/nil/nil

Sight unspecified, as was target. I assume 1st shot both stationary with Stadia
and reference target M60A1 as USA range test.

Text notes "Soviet textbook estimates of the 100mm gun's accuracy are much higher. Theoretically, a gun using a BR412 APHE (the book changes classification on the shell here round against a halted enemy tank 2.7m high and 3.6m long should have a 77% chance of hitting its target at 1800m range.

the text also notes "Actual accuracy would doubtless be much less in combat conditions" - which one can apply to all the above range test results as well.

100mm D-10 armour piercing values: (500/1000/1500/2000)
BR-412 APC 155/135/117/100
BM-6 HEAT 380 (any range)
BR-412B APC -/171/-/146
BR-412D APC -/175/-/156

Pk "The probability of killing an M60 tank with a 100mm shell is aboutr 50%, though this depends heavily on whee the target tank is hit"


Pt-76
50/100/175/250/500/750/1000/1500/2000/2500
BR-354 APCR 97/89/89/89/86/83/68/39/17/0
HEAT 97/83/83/83/83/75/61/33/3/0


M60A1 equivalent figures against Soviet Tanks:

AP values (500/1000/1500/2000/2500/3000)
105mm APDS 300/275/200/225/200/175 Pk 54%
105mm HEAT 425mm pk 75%
TOW 500mm pk 90%
Dragon 300mm Pk 80%
LAW 325mm Pk 33%


Ph (@ 50/250/500/1000/1500/2000/2500/2500/3000/3750), stationary vs stationary target, 1st round
105mm APDS 97/94/94/86/61/44/25/8/1-2
105mm HEAT 97/92/89/69/50/28/17/3/nil
105mm HEP (they mean HESH) 97/92/89/56/47/28/17/3/nil
TOW nil/75/90/90/90/90/90/90/90
Dragon nil/73/90/90/nil..
M72A2 97/17/nil

Also in the book:

A Belgian M48 tank using different types of rangefinder with its 90mm gun:
(Stationary tank vs stationary 2.3m square target)
500/1000/2000
Laser 98/86/34
Sterio Coincidence 97/70/14
Stadia reticle 98/34.5/4

[JaM]

I found those:
1000/1500/2000
105mm M68 with M735 98/87/74 (M60A3 in 1980)
105mm M68 with M111 95/81/67 (Merkava mk1 during Lebanon fighting)
120mm M256 with M827 98/84/70 (M1A1 during tests in 1985)
125mm 2A46 with APFSDS 87/66/46 (T-72 with laser rangefinder in 1980)
115mm 2A20 with BR5 86/60/43 (T-62 with laser RF 1980)

120mm M256 with M829A1 80% at 2500m stacionary,75% at 2000m moving

I posted some data from Slovak military buletin where T-72 had accuracy 57% at 2000m with 2A46 firing BM-15 round

[JaM]

M827 was new round with accuracy problems, Merkava 1 stats are fighting results, so they cant be compared with one from training ground.