“The ammunition hopper held five ‘chargers’. Each of these ‘chargers’ had a ‘base guide’ and a ‘nose guide’, which could hold up to five rounds of 6pdr shells. The usual load was 5-4-5-4-5”.

Alex Crawford, Shipbuster Mosquito Mk XVIII “Tse-tse” An Operational History, Mushroom Model Publications.

http://www.amazon.co.uk/Mosquito-TSE-Alex-Crawford/dp/8389450453/ref=sr_1_1?s=books&ie=UTF8&qid=1402955060&sr=1-1&keywords=mosquito+tse-tse

Yes, I paid more than £5.99 for my copy.