11-12-2017, 01:31 AM
Logistics.
Legacy ammunition on hand, weapon training, existing troops trained on legacy weapons, a new weapon requires retraining and development of new training. Procurement, stocking and distribution of ammunition and spare parts for two weapons systems.
These factors also make something like improved ammunition for existing weapons look more attractive than replacing an entire weapon system, including ammunition.
Legacy ammunition on hand, weapon training, existing troops trained on legacy weapons, a new weapon requires retraining and development of new training. Procurement, stocking and distribution of ammunition and spare parts for two weapons systems.
These factors also make something like improved ammunition for existing weapons look more attractive than replacing an entire weapon system, including ammunition.