baɪ ðə fˈɜːst wˈɜːld wˈɔːɹ ðə twˈɛlvpˈaʊndɚ ɡˈʌnz hɐdbɪn ɹᵻmˈuːvd ænd ɹᵻplˈeɪst wɪð ɐ sˈɪksˈɪntʃ bɹˈiːtʃlˈoʊdɪŋ bˌiːˈɛl ˌɛmkˈeɪ.
By the First World War the 12-pounder guns had been removed and replaced with a 6-inch breech-loading (BL) Mk.