To combat 'Godzilla'-type threats JLTV needs a bigger gun
The Joint Light Tactical Vehicle, which is slated to replace the High Mobility Multi-purpose Wheeled Vehicle (HMMWV or Humvee), entered low-rate initial production this year. But while it faces the challenge of replacing an iconic vehicle (much as the HMMWV replaced the jeep), it is getting a little help from another icon, the AH-64 Apache.
Not that the HMMWV couldn't carry some decent firepower. It has operated the M2 heavy machine gun, the Mk 19 automatic grenade launcher, and the BGM-71 Tube-launched Optically-tracked Wire-guided missile (TOW). That said, here's its problem: The M2 and Mk 19 are more suited to take out infantry and trucks than to take on armored vehicles. Granted, even a HMMWV could carry a lot of ammo for those weapons. Using those weapons against a BMP would be like shooting an elephant with a .22.
So, the JLTV, to paraphrase an Army NCO from the 1998 version of "Godzilla," needed a bigger gun. But what sort of gun? The JLTV couldn't quite manage the M242 Bushmaster used on the M2/M3 Bradley or the LAV-25 and still have enough ammo and still be able to carry up to six troops. Then, the Army looked to the Apache.
At 160 pounds, the M230 cannon on the Apache is lighter than the M242 (262 pounds), but the 30mm round it fires can easily take out most light vehicles, particularly the BRDM-2, a likely opponent. The M230 can also take out a number of armored personnel carriers and infantry fighting vehicles, like the BTR-80 or BMP.
The M2 made a similar journey. While initially intended as an anti-tank weapon, Ma Deuce gained its biggest notoriety as the main armament of American fighters like the P-51, F4U, and P-38 during World War II. Even in the Korean War, it served as the primary armament for the F-86, before being displaced by 20mm cannon.
Using the M230 is also a benefit for lighter units like the 82nd Airborne Division and the 101st Air Assault Division. Since the AH-64s with those units use the M230 already, there is no need to add a new gun and all the spare parts and ammo into the supply chain for those divisions. That makes life a little easier for the valuable logistics personnel while the front-line grunts get a bit more firepower.