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Easy8
Penetration near 200
Penetration mid 165
Penetration far 155
Comet
Penetration near 210
Penetration mid 190
Penetration far 170
Panzer H
Penetration near 125
Penetration mid 115
Penetration far 110
T-34/85
Penetration near 160
Penetration mid 140
Penetration far 120
The weapon is very good since it also has 75% accuracy on the move.
M36 Jackson Armor: 130
SU-85 / Stug III Armor: 140
T-34/76 Armor: 150
M4A3 Sherman / Cromwell / Firefly / T-34(85) / 76MM Sherman Armor: 160
PzIV (Ostheer Vet 0) Armor: 180
M4A3E8 Sherman Armor: 215
JagdpanzerIV Armor: 230
PzIV (Ostheer Vet 2 and OKW standard) Armor: 234
Panther (Ostheer vet 0) Armor: 260
Panther (Ostheer vet 2) Armor: 286
Comet Armor: 290
Tiger Armor: 300
etc
It is always worth noting when comparing penetration values of axis vs allied tanks that axis vehicles generally enjoy a substantial armor advantage over their allied counterparts. Without this context, Panzer IVs appear woefully inadequate, when in reality a vet 0 Ostheer PzIV enjoys a higher (0.6875) chance to penetrate a T-34/85 at max range than vice versa (0.6667).
It should also be said in comparisons, particularly on topics of accuracy, that the Panther (the obvious counterpart to the USF Easy Eight) has much better accuracy for the main gun
in general, being 40% (0.025 vs 0.035) more accurate at max range (where it should be said that the panther also enjoys a range advantage, 50 to 40), and 20% more accurate at mid (0.0375 vs 0.045) and near (0.05 to 0.06) range. This is also true for any other medium tanks, including the 76mm Sherman AP shells, as they generally share the same vet 0 accuracy values. (Note that the HVAP Shells on the 76mm Sherman actually appear to have the same accuracy as a Panther shot. More on this later)
It goes without saying that the Panther is also capable of penetrating with any hit that lands on any allied medium tank besides the Comet regardless of distance whereas the opposite is not true for the Easy 8, the 76mm Sherman (with
or without HVAP, 220/180/165 with, 120/130/140 without) nor even the Comet.
With regards to received accuracy the 76mm and M4A3E8 Shermans both have a target size of 23, about 5% smaller than the 24 value of the Panther. Note this target size is shared by the regular M4A3 Sherman as well. The Cromwell, Panzer IVs and T-34s all have a marginally smaller target size of 22 (essentially another 5% difference).
So, getting back on topic, these penetration values may look great and all, but they do not constitute even close to the whole story, as the ability of allied medium tanks to penetrate their PzIV counterparts is not much greater and is in many cases worse than their opponent's ability to penetrate them.
Critically, Axis tanks up to and including the Panther also have generally faster reload times, and this is particularly apparent with the M4A3E8, which enjoys the dubious distinction of longest reload time of any medium tank gun.
M4A3E8 Reload Time: 6.6 - 6
Comet Reload Time: 6.4 - 5.9
T-34/85 Reload Time: 6.3 - 6
M4A3 / Cromwell Reload Time: 6 - 5.6
Panther Reload Time: 5.6 - 5.2
Panzer IV Reload Time: 5.7 - 5.3
Here the 76MM Sherman actually displays a considerable advantage over its opponents, as its normal AP shot has a much lower reload time. However, HVAP rounds require a much longer reload.
76MM Reload Time (AP): 4.5 - 4.1
76MM Reload Time (HVAP): 6.1 - 6.1
In general however, looking through the numbers I think the 76mm Sherman is statistically the best tank-fighting medium tank USF has, and it certainly appears better suited than the M4A3E8 Sherman, which, despite having 55 more armor and 80 more HP, will almost always deal less damage in the same amount of time as a Panther OR a 76mm Sherman, no matter what is being fired at.
Against the Panzer IV the superiority of the 76mm Sherman is even more obvious, as, in a short 15-20 second engagement, with regular AP rounds, it will ALWAYS get in at least one extra shot compared to a Panzer IV, M4A3 Sherman, and especially an Easy 8.
I think this thread may actually have the wrong focus, since here, at least, on paper, the M4A3E8 actually appears many times less efficient than a 76MM Sherman, since it cannot beat a Panther (having worse accuracy, worse armor, FAR worse HP, and worse speed and acceleration) and generally cannot beat a Panzer IV any more efficiently than a 76MM Sherman could, and is barely any more effective versus infantry, while also having more a expensive MG upgrade and being more expensive overall.
The only advantage of the Easy Eight is it's higher armor, which does make it more
resilient versus the Panzer IV, as well as slightly higher HP, allowing it take one more hit than the normal or 76mm Sherman. The armor is however, as discussed earlier, a moot point versus anything other than the prior mentioned Panzer IVs, and its slowness of movement and firing speed make it a decidedly worse vehicle to use against the Panther, where the 80 extra HP hardly matters considering the Panther has much more anyway.