Hi, I read that the French 25mm ATG was a bad weapon, but I think it has been given hard time when you consider that the Solothurn S-18/1000 was highly thought of, there were two different types of 25mm used by the French in 1940 (not counting AFV mounted and AA) and I can find the armour penetration data on the Hotchkiss but not the Puteaux, 25mm L/77 mle 1934 Hotchkiss Anti-Tank Gun 29mm @ 500m @ 30° 25mm L/72 mle 1937 Puteaux Anti-Tank Gun ?? @ 500m @ 30° 20mm Solothurn S-18/1000 Anti-Tank Rifle 15mm @ 300m @ 30° As you can see the Hotchkiss can penetrate 29mm up to 500m, but the Solothurn can only Penetrate 15mm up to 300m, I dont know about the Puteaux with having a shorter barrel it may be less but I think both 25mm fired the same round. I hope this data is ok because sites differ and I cant remeber were I got this info from. Regards Yan.