The appendix in
ATT shows Atkey and Anderson with 27 victories in May '18 (12 destroyed, 15 OOC). That's far more than any other Brits in a single month. Next up was Claxton in July with 18 (the appendix says 17, which was Bishop's claim that month).
Among other top Brisfit types, McKeever's best month was 8 (6 dest.) in Oct 17; Thompson had 9 (7 dest.) in May 18.
BrisFits are way cool.