In 1967, Braud introduced a larger model, the 505. The width of the 105-centimeter threshing mechanism remained unchanged, but the threshing drums were long and the 32-hectoliter grain tank was large for its time. The engine was a 95-horsepower six-cylinder Perkins, which was still positioned in front of the grain tank. A year later, smaller models were introduced to the 500 series. The 504 had threshing drums slightly shorter than those of the 505 and a smaller engine. The 502 and 503, on the other hand, were significantly smaller in size and more closely related to the 405.

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