PARIS — German defense company Rheinmetall has unveiled a prototype of a 130mm smoothbore gun for a future main battle tank (MBT). According to the company, the increase of 8 percent in caliber results in 50 percent more kinetic energy over the 120mm gun from Rheinmetall, installed in thousands of tanks worldwide.
The presentation at the Eurosatory defense show, taking place in Paris this week, comes as Russia adopts a new generation of armored vehicles — including the Armata MBT — with enhanced protection and a renaissance of classical, mechanized armored forces. Furthermore the French and German ministries of defense decided to develop a joint combat vehicle as a successor to their respective Leopard 2 and Leclerc fleets. It's possible a new tank program could be launched by the two European nations sometime between 2025 and 2030.
It's highly unlikely the new gun proposed would fit into an existing Abrams tank turret. Heck, a turret that could carry the new tube probably wouldn't fit the existing hull.
For now, the 120mm M256 is quite capable of penetrating existing armor. But new threats are emerging, and upping firepower is the traditional way of the tank.
But bigger guns drive up the size of the tank. Which, if you're building a bigger, more expensive tank, you're incentivized to add even more protection. Which in turn drives a demand for a bigger gun…
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