Re: 20 pounder vs. T54's front hull
[quote=Aeraaa;835053]"(source: WW2 ballistics armor and gunnery by Lorrin R. Bird and Robert D. Livingston pages 30-31, although it speaks mainly about 17 pounder, 20 pounder wasnt much different)."
A late model 17 pdr fired APDS at 1,204 mps. (3,950 ftps) giving 275 mm of penetration at 100 mts and 162 mm of penetration at 3,000 mts.
The 20 pdr fired APDS at 1,465 mps (4,810 ftps) giving penetration of 300mm at 100 mts and about 195mm at 3,000 mts.
(Worth noting that the 20 pdr APDS round had roughly twice the penetration of a German 88mm AP round).
So far as I'm aware most armour penetration tables work on the basis of a 50% chance of penetration of a given thickness of armour at a given range ( but I was never a Tanker).
Last edited by IronDuke99; August 25th, 2016 at 09:46 AM..
Reason: spelling mistake.
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