Post WWI France developed the state of the art war materiel. Their AFVs and guns were copied by many nations. Unfortunately the country was tired of war and the leadership placed too much faith in the Maginot line. While radios were still a new invention, the lack of them contributed to the downfall of France.
I was curious as to the choice of the 25mm ATG for BABF and had a look at the Axis History Forum for info. The 47mm gun was, I thought, one of the best in the world at that time. This was posted by David Lehmann
The French 25mm AT guns were very modern in 1934. About 4500 of these guns were in service in May 1940. They were especially known as being very discreet, the flash hider used on them made them difficult to spot according to both French and German AARs. They proved to be very accurate guns, and able to destroy all the German tanks up to 800m if the angle was good enough, but their armor penetration capability was already limited in 1940 when facing the PzIV Ausf.D at long range.
In the first 500m the penetration efficiency was equal to the penetration of the Pak36 and after the KE felt more rapidly due to the lightweight projectile (0.320kg for the 25mm ATG and 0.685kg for the Pak36 AP shell).
The Germans captured such guns in large numbers in 1940 and used them in secondary roles as coastal defense and in some garrisons. Finland used also about 240 of these AT guns.
There were theoretically 12 of these AT guns in each French infantry regiment in 1940 but several regiments had only 4 or no AT gun at all. For example the 55th infantry division at Sedan had no AT guns in its infantry regiments, 12 AT guns in divisional AT company and 4 AT guns in the 4th GRDI, a total of 16 AT guns for the whole division on a large front (26% of the number of the paper).
The 37mm TR infantry gun was often still in service even in AT role. The 25mm AT gun was lacking HE shells to neutralize human/soft targets and therefore the 37mm TR infantry gun was still liked since it could fire HE shells. About 220 25mm AT guns were also given to the British Expeditionary Force (BEF) to increase its firepower, in exchange the British gave the French some Boys AT rifles which were not efficient and had a weaker penetrating power than the Hotchkiss 13.2mm HMGs.









