They had plans and limited conversion of 12,2 cm s.F.H. 396 (r) (M-30) to 12,8 cm.
Aside that they came to the conclusion that production of own 12,2 cm Sprenggranate and Hohlladungsgranate (which is identical in performance to 12,8 cm so 15 cm pen).
how do you get the performance about 8.8cm aphedsfs, by calculating or guessing?
I just put it in the calculator, taking it as a simple aphe.
@Ghostmaxi Is there any documentation for the 10.5 cm L/68 or any gun that could have been its predecessor? I’ve often wondered whether or not it existed in any form.
Yes it existed, along with at least the L/70 barrel.
There should be a photo of it, atest report, there is a penetration/velocity graph.
I do not know if it is based on a gun, or simply a new development.
@KillaKiwi should know a little bit.
Someone posted information in a thread on the axis history forum:
There was a project for a new 10.5cm anti-tank gun.
However only prototypes were developed and the 12.8cm was chosen instead, as it could be used as field artillery as well.
So the gun and ammo existed but nothing ever came out of the project, apart from the proposal for a more powerful armament for the Tiger II.
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