The XM360 next-generation 120mm tank cannon integrated with the AAHS will provide the M1 Abrams a capability to fire the next generation of high-energy and smart-tank ammunition at beyond line-of-sight (LOS) ranges.
The XM360 is 2100 pounds (952.5 kilograms) lighter than a M256.
Otra cosa a destacar del artículo: la dificultad de integrar el cañón Reinhmetall L44 derivó en el M-256 con cureña diferente a fin de acomodarse a la geometría de la torre del Abrams. Pero esta solución, se ve, que no valía para el L55 y tuvieron que desecharla por costosa.
From 1998 to 2000 the US tested three modified Rheinmetall L/55 guns (and a further 12 barrels produced under licence by TACOM/Watervliet Arsenal) under the designation M256E1. While the Rheinmetall gun was designed to specifically fit into a modified gun mount of the German Leopard 2 tank, the different gun mount and stabilization systems of the M1A2 Abrams had troubles handling the longer and heavier barrel. This would result in a reduced accuracy and required major modifications (including a completely new stabilization system) to fix, which results in inappropriately higher costs for simply upgunning.
Un saludo.