Why so rough

[Colonel Enfield]

That would be 11 rounds with a 10 rounder (10 plus 1 up the pipe) and if you have a rare 20 round mag then 16-18 could be possible

Our club record is 12 rounds in 15 seconds - 10 round magazine fired off, a single charger reload and another two rounds away before the buzzer sounded.

You could sew one up for yourself, use a pair of mags tack welded together. A steel saw and a wire feed welder and you're good...

Magazine capacities are restricted to 10 rounds in most parts of Australia. A recognised collector could get away with having an original 20 round mag, but a bodgied up hi-cap could get the maker/user in trouble with the authorities.