Dear Ministry of Defence,
I am requesting a list of documentation regarding penetration testing for the following ammunition types used on the L11A5 rifled tank gun;
L31 High Explosive Squash Head
L15 Armour Piercing Discarding Sabot-Tracer
L23 Armour Piercing Fin Stabilized Discarding Sabot
L26 "Jericho" Depleted Uranium Armour Piercing Fin Stabilized Discarding Sabot

Please note that I am not requesting any testing regarding the L30 tank gun used on the Challenger 2, which was an evolution of the L11A5 used on the Chieftain and Challenger 1 tanks.

Yours faithfully,

Eli Hayes

DES SEC-PolSec LE-JSC-WPNS (MULTIUSER), Ministry of Defence

Dear Mr Hayes

Your request has been logged under our reference FOI2019/05907 and the target date for response is 17 June 2019.

Yours sincerely

DE&S Secretariat

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DES SEC-PolSec LE-JSC-WPNS (MULTIUSER), Ministry of Defence

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    20190610 FOI2019 05907 Hayes L11A5 ammunition performance substantive response O.pdf

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Dear Mr Hayes

Please find attached a response to your recent request.

Yours sincerely

DE&S Secretariat

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Dear DES SEC-PolSec LE-JSC-WPNS (MULTIUSER),

Thank you for your prompt and thorough reply to this request, it's greatly appreciated.

Yours sincerely,

Eli Hayes