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In Tanknet forum someone posted the serviceability rates for Pz IV ,Panther and Tiger for East and West from May '44 to March '45 , source was Jentz "Tiger I and II combat tactics' .The Panther compared with the PzIV had slightly lower serviceabiliy in the East and in the West avg 5-6%.I have the Forczyk book ,calling it biased would be the mother of all understatements.His conclusion is that the T-34 was a better tank.This at the same time Soviet commanders were begging for a replacement......If you want to be amused check his reviews for Amazon ,i won't say anything more.You need to realize that a tank is also affected by several variables for example the Panther would be given the hardest missions ,thanks to it's survivability it would take damage but keep working etc .All this factors would cause lower serviceability.Best source for German tanks is Jentz if you don't have Panzertruppen go get it.
The thing is it wasn't needed for 1941 and most of 1942, With the normal 76.2mm being able to handle any German tank until the Tiger shows up in the fall of 1942 you have about a year or more were it is just a needless complication. And even then the numbers of Tigers are quite small. With the Panther not showing up until the summer of 1943 the 57mm isn't really going to change to overall picture. A klittle more long range tank sniping perhaps but it wasn't going to decide any battles.One might just wonder what would've happened had the Soviets continued to produce 57mm from 1941-43, both in towed tank gun flavor (produced in perhaps 1:3 ratio vs. 76,2mm tank gun?). Or opted for a derivative of 76,2mm AA gun as tank/AFV armament in 1939, for future T-34 KV tanks.
Oh and there's no need for insults im'not responsible for you lack of knowledge.
Some tanks and turrets were more suitable for up gunning than others. Americans went for a new turret to go to the 76mm on the Sherman, British had to cut a hole in ( or a good part of the rear wall out) in order to move the radio back far enough to clear the recoil of the 17pdr. Ammo fell from 97 rounds of 75mm in an M4A3 to 71 round of 76mm in an M4A3E8 but it seems Sherman ammo storage was rather "flexible" form version to version? Fire fly fell to 42 rounds and that was after they took out the bow gunner and used the space for an ammo rack. Most T-34s are listed at 67 rounds or so but some people claim the 1943 model could hold 99 rounds (??), wither the tank had radio could make a rather notable difference in rounds carried. T-34-85 carried 56 rounds.The intention was not to battle Tigers (the one year earlier SU-85 might've been nice for that), but to deprive Pz-IV (from F2 to H), Pz-III J L, and StuGIIIF/F8/G from gaining advantage or parity in gun vs. armor race. As for ability of existing turret to receive a bigger gun, it was not a problem for Pz-III (5cmL42 -> L60) and for PzIV (L24 -> L43 -> L48 ). The decision made in 1939 caters for issues better than one made in 1941, for Soviet example. As for ammo, the difference for Pz-III was 87 vs. 80 rounds (short vs. long 5cm) while Pz-IV with longer 7,5cm carried more rounds than types with L24 gun
Of course, it takes much more than golden bullet to reverse the outcome of a major campaign.
No no no i meant HIS reviews.Also if you have the time i recommend ''T-34 Mythical Weapon'' it's a great book ,really amusing and it totally destroys the myth.
Oh and there's no need for insults im'not responsible for you lack of knowledge.