 On 24 March 1928 he was ordained a priest by Bishop Johannes Baptista Sproll at Rottenburg Cathedral.Over the next five years, he served as a vicar at Holy Cross Minster in Schwäbisch Gmünd and at St. George's Church in Stuttgart.Leiprecht served as the city priest of Rottweil from 1942 to 1947 before becoming vicar capitular at Rottenburg Cathedral.