ðiːz hæd baɪ ðˈɛn ɐpɹˈoʊtʃt ðɛɹ lˈɪmɪt ɪn tˈɜːmz ʌv ˈɑːɹmɚ pˌɛnɪtɹˈeɪʃən, ɹˈeɪndʒ ænd dᵻstɹˈʌktɪv pˈaʊɚ.
These had by then approached their limit in terms of armour penetration, range and destructive power.