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| Weapons in WWII Discussion about the weapons and war machines created during World War Two |

August 22nd, 2002, 09:17 AM
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Yes, the poor 2-Pounder !
Ian V Hogg in 'British & American Artillery of WWII' states that ; -
'On the day it was formally approved, 1 January 1936, the 2pdr was undoubtedly the best anti-tank gun in the world.Unforunately, by the time it had to earn its' keep, it was no longer capable of dealing with the opposition...'
So definitely not my overall favourite weapon !
But the 17 Pounder, especially in the Sherman 'Firefly' - that was something else.
Going back to 'Archer' - apparently, one slight snag was that the driver had to vacate his seat before the gun could be fired in order to avoid being decapitated by the recoiling breech (  )
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August 22nd, 2002, 11:12 AM
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Ahh the much maligned 2-pounder. Certainly better than the PAK 36 and the Russian 45mm. I don't know how it compared to the Bohler 47mm.
I don't think the AT round was any worse than it's contemporaries. Except the Skoda 47mm with it's tungsten round.
Martin, have you seen any pictures of the Alvis-Straussler 17pdr tractor? Was this thing ever used in combat?
Jumbo
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August 22nd, 2002, 06:06 PM
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Ouch - you've got me there, Jumbo.
Was it some kind of self-propelled gun, or was it that odd-looking lightweight tractor that went to Arnhem to tow the 17-pdrs ? 
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August 22nd, 2002, 06:14 PM
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I think it's the lightweight tractor, but i'm not certain. I have a pic and brief description in BT Whites Armoured Fighting Vehicles but no idea if it was ever used. Looks like a Garden Rotavator pressed into use to tow an AT Gun.
Jumbo
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August 22nd, 2002, 06:54 PM
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Sorry, Jumbo - I've checked and the 17-pdr tractors at Arnhem were specially modified, stripped-down Morris Commercials.
I very dimly recall seeing something like you've described in an old 'Airfix Magazine'....
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August 25th, 2002, 05:26 AM
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Still not knowing the exact caliber...
Das reich: [img]tongue.gif[/img] [img]tongue.gif[/img] [img]tongue.gif[/img]
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August 25th, 2002, 08:16 PM
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I've hunted everywhere to find it - the calibre of the 17-pounder Anti-tank gun was 77mm.
( Someone is sure to tell me I'm wrong... )
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August 25th, 2002, 08:59 PM
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Thanks a lot, Martin!  [img]smile.gif[/img]
But the 25 pounders was...?
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August 25th, 2002, 11:56 PM
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The 25 Pounder ( measured from a shellcase in my collection ) was 88 ( or maybe 89 ) mm.
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August 26th, 2002, 12:50 AM
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Thanks again, Martin!  I will go with 89mm. 88mm sounds like a cheap copy... 
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"War is less costly than servitude, the choice is always between Verdun and Dachau." - Jean Dutourd, French veteran of both world wars
"A mon fils: depuis que tes yeux sont fermes les miens n’ont cessé de pleurir." - Mère française, Verdun
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August 30th, 2002, 05:33 AM
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Sorry to have to be specific-but i believe the 25 Pounder was 89.4mm-I think... 
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August 30th, 2002, 01:29 PM
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NOW you know why we stuck to good old Pounds rather than all this metric rubbish.... ! [img]tongue.gif[/img]
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August 30th, 2002, 09:34 PM
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SMG:THOMPSON M1A1
cheers for now
Kenny 
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August 30th, 2002, 11:33 PM
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Can we say... for good ?
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August 31st, 2002, 04:40 AM
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Well, I can see what you mean, Martin!
You Brits are too complicated! [img]tongue.gif[/img]
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"A mon fils: depuis que tes yeux sont fermes les miens n’ont cessé de pleurir." - Mère française, Verdun
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August 31st, 2002, 06:33 AM
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Wow, where did Kenny come from???
Okay to help clear up this problem with pounds and calibres, I found this quick guide.
2 pounder = 40mm
6 pounder = 57mm
17 pounder = 76.2mm
25 pounder = 87.6mm
Also,for calibres expressed in inches (Naval and Artillery Guns etc.)
.303 = 7.7mm
.380 = 9mm
2 inches = 50.8mm
3 inches = 76.2mm
4.5 inches = 114.3mm
5.5 inches = 139.7mm
8 inches = 203mm
Hope this helps.
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September 1st, 2002, 12:27 AM
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Martin Bull [/quote] "I`ve hunted everywhere to find it - the calibre of the 17-pounder Anti-tank gun was 77mm."
( Someone is sure to tell me I'm wrong... )
The calibre of the 17 pdr was 76.2mm.
The (so-called) 77mm fitted in the Comet tank was in fact also a 76.2mm(17pdr),but with a cut-down cartridge. To avoid confusion with ammo this gun was called 77mm.
 clear as mud
[ 31 August 2002, 06:40 PM: Message edited by: redcoat ]
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September 1st, 2002, 07:53 AM
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My brain hurts !  I think I'll just stick with 17 Pdr and 25 Pdr ! 
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September 1st, 2002, 12:52 PM
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Martin  , I just thought you might like to know that the American 76mm gun fitted on the later Shermans was also 76.2mm, but it had a lower muzzle velocity than the British 17 pdr(76.2mm ) 
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September 1st, 2002, 03:19 PM
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Hello Martin its me again
Just in case you are interested, here are some figures for the difference in effectiveness between the 76.2mm guns.
Performance figures were as follows (for conventional AP shot):
77mm: 17 lbs at 2,575 fps, penetrated 110mm at 1,000 yards/60 degrees
17 pdr: 17 lbs at 2,900 fps, 118mm
US 76mm: 15.44 lbs at 2,600 fps, 89mm
figures taken from the book "Fire and Movement" published by the RAC museum
Thanks to Tony Williams [img]smile.gif[/img]
ps the figure for the 17 pdr firing APDS ammo would be approx 210mm (came into service late-summer 1944 )
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September 1st, 2002, 06:33 PM
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Thanks, Redcoat.
I can see why Eisenhower was disappointed when the Shermans were 'up-gunned' to the 76mm.
Apparently, he'd been led to believe it was a 'wonder-weapon'......
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September 3rd, 2002, 10:45 PM
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A lot of things about the Shermans make me wonder... 
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September 3rd, 2002, 11:21 PM
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Alte Hase 
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Shermans.....  | |