6.2x43mm Caseless

Development and Service
The 6.2x43mm Caseless munition was the product of a series of development projects by the Office of Naval Small Arms to design a universal munition for small arms to replace the long-service 6.5x52mm rifle cartridge. Though replacement projects for the 6.5x52mm began as early as 1939, the project that would enter service as the 6.2 caseless began with a Naval white paper on future small arms issued in 1966. The white paper called for a radical new armament to reduce logistical burdens for far deployed naval infantry, taking lessons from the events of the Kesh war.

The 6.2mm caseless entered troop trials in 1987, and though it was favourably received by the troops trialing it, a number of issues relating to humidity were found in some cartridges which led to a delay of official adoption until 1993.

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