He was invited to the SA Hunting Rifle and Shooting Association Top 50/20 which was held in Mpumalanga in May 2018. He did some excellent shooting during the two days of the competition and ended up in the Senior South African Team: the first junior ever to qualify for the SAHRSA Open Team. Manus represented the team during the 3rd International World Championship held outside Bloemfontein in July. In addition to South Africa, there were participants from Australia, Namibia, Sweden, Czech Republic, Germany, Denmark and the Netherlands. The marksmen were tested to their limits. The competition consisted of a three-day shooting with different size steel plates and paper targets at different unknown distances, up to an estimated 400 metres.  The ranges are built in the open veld and distances are unknown and should be judged by the competitor. 155 marksmen attended the competition from all over the world. In the team competition, the South African team took the honours followed by the Czech Republic in 2nd place and Namibia in the 3rd place.

As an individual, he came 1st in the Junior Category and 2nd Overall in the Open Category and won the International Hunting Rifle Shooting Association World Championship Junior title.  For this Manus Moolman receives Honourary Colours Cum Laude.