autorev, on Jun 06 2012 - 13:05, said:
Okay, look. Here's the problem. Your argument essentially centers on a conversion from German penetration stats to other countries' penetration stats. You and/or other people who feel that the 88mm L/56 is underrepresented in this game want a 25%-30% increase in penetration to somewhere between 160 and 170. But what does this mean? If the L/56 has a penetration of 160, that implies that the L/71, rated at 203 penetration, ought to have a penetration of 250. There is absolutely no chance that they will let a tier 7 vehicle mount a 250 penetration gun, meaning you'll be stuck with the 88mm L/56; in practical terms, what you are asking for is a NERF to the Tiger's maximum penetration (from 203 to somewhere between 160 and 170). The Panzer IV would have to go back down to the L/48 and be left with roughly the same penetration as before. All the tier 6 mediums would use the 75mm L/70 or 88mm L/56, but they'd almost certainly get ROF nerfed. This is honestly not that good of a deal for them, since they perform quite well already under the existing playstyle.
It'd help the Jagdpanzer IV, though.
My argument is centered on the flawed conversion of German penetration stats, but is backed up by a large amount of research on the topic, in addition to basic knowledge of physics and kinetic energy.
160-170mm is too much penetration for the 88mm L/56; I'd say 150-160mm is a better range, with 155mm as a comprimise.
The 88mm L/71 is actually one of the least undervalued German guns; it only needs a boost of 10-15% to be historically accurate.
About 220-230mm in other words. This is comparable to the French 100mm SA 47 with 232mm penetration; with 7.4, that gun will be available on a tier 7 TD (and that TD has significantly better armor than the Tiger I), so it wouldn't really be unbalanced for tier 7.
The 75mm L/70 badly needs to be increased to at least 170mm to be at all accurate, maybe higher. My pen range estimates for that gun is 170-190mm.
It'd need to be dropped from the Panzer IV and Stug III for sure with that kind of penetration, but together with the 88mm L/56 buff, that would fix the entire 'penetration gap' problem with the German tree and make the JagdPanzer IV a viable TD.
The 75mm L/48 I give a range of either 120-130mm with its historical 750 m/s muzzle velocity, or 130-140mm with ingame (and German penetration test) 790 m/s MV.
130mm seems reasonably balanced for a 750 m/s MV, and the penetration loss for the Panzer IV and Stug III is fairly small.
Accuracy would drop too, but both nerfs can be balanced by a rate of fire buff.
138-140mm penetration is possible too, but 790 m/s MV isn't accurate historically; that MV produced too much recoil in enclosed vehicle compartments to be practical.
The 75mm L/43 had only slightly less penetration than the L/48 historically, as its MV was only 740 m/s... I'd say 115-125mm, 120mm as compromise value.
This would buff the Panzer III/IV a fair bit, but that tank is a bit on the weak side at current, so no harm there.
One big problem is Marder II guns:
75mm L/46 PaK 40 penetration range for that gun is 130-140mm with its historical 790 m/s MV; it should have the same penetration as the 75mm L/48 if that gun has a 790 m/s MV, or about 10mm more if it has 750 m/s MV.
140mm is a reasonably accurate value.
76mm PaK 36r penetration range is slightly less than the PaK 40, about 120-130 (similar to the 75mm L/48 with 750 m/s MV actually).
I'd give the PaK 36r 130mm, and the PaK 40 140mm... but that makes the Marder II even more insanely overpowered. Only solution that I can think of is dropping the PaK 40 from the Marder II (keep it for the Marder III), but that's still a 12mm penetration buff for the Marder II's top gun.
TBH, the Marder II could use a nerf anyway... a pen buff would be a good excuse to give it some.
About the only German gun to receive accurate (or slightly greater than accurate) penetration is the 105mm K.18 on the JagdPanther; my estimates give it 180-200mm penetration, and it has 200mm ingame.