"I think it's fine too." At this time, another engineer expressed his opinion: "Our 113 armored vehicles and Lion tanks, actually can't withstand the 50 long barrel guns, and the effect would be the same with 75 caliber cannons, so there's no difference."
The armored vehicles of the Great Tang Empire don't have very thick defenses, so indeed there is no need to worry about the opponent's anti-tank guns being too powerful. Because even a 30mm caliber machine gun can easily penetrate the protection of these armored vehicles.
He then continued to say, "On the other hand, our Type 59 tanks and Panther tanks can withstand attacks from 75 caliber guns at a medium range, and it's the same with 50 caliber."
"So shall we go for the cheaper 75-caliber guns?" Having heard this, many people thought that there was no need to develop a new gun, giving the 75-caliber gun directly would save some trouble.