Ullman was not a free pistol specialist but rather an all-round shooter, achieving great successes in all three pistol events that existed at the time. In the Rapid Fire competition in Berlin, he won the bronze medal after an extremely rapid shoot-off, and three years later he became World Champion in that event, being one of only four shooters to win major worldwide titles in both 50 m Pistol and 25 m Rapid Fire Pistol. He entered the first World Championship in 25 m Center-Fire Pistol in 1947, surprisingly with a Smith &amp; Wesson revolver, and won by seven points, causing a worldwide revolver hype. He repeated this victory in 1954.