This looks like a great leap in killing power for foot-soldiers. The ammo must be pricey, as is the delivery system, but a real advantage for the US until their opponents get hold of the technology.
One good thing is that the kill radius of this weapon is much smaller than that of an air strike, so we may see a big drop in 'collateral damage' or non-combatant deaths and injuries.
Army to test XM25 'smart' grenade launcher rifle (w/ Video)
May 9, 2010 by Lisa Zyga XM25
(PhysOrg.com) -- The US Army has recently announced plans to test the high-tech XM25 airburst grenade launcher this summer in Afghanistan, unleashing a weapon that veterans predict could be a game-changing advantage in the war. The XM25 can fire 25mm rounds that explode at any distance set by a soldier, effective at a range of up to 700 m. Because the 14-pound, $25,000 gun can fire rounds in just seconds, it could replace the need to call in fire missions, artillery or airstrikes in some situations, which can take anywhere from several minutes to an hour to arrive.
Army officials say that the XM25 could be ideal in current situations in Afghanistan, where the enemy tends to hide behind barriers such as walls and trees or in underground trenches, often at distances of 300 m or more. Right now, such targets are difficult to hit even for skilled marksmen, since a bullet is only lethal if it hits the head or vital organs.
Since the blast radius of the XM25 is equivalent to a hand grenade, it could allow US soldiers to target and kill these hidden snipers. For example, if an enemy is hiding inside a distant building, a soldier can point the gun at the building’s façade, which measures the distance using lasers and sensors. The soldier can then add (or subtract) a smaller distance so that the round explodes at an estimated location close to the enemy. When the soldier fires, the microchip-embedded round tracks the distance it has traveled by the number of times it rotates. Upon exploding, the 25mm round spreads shrapnel in all directions, likely killing anyone nearby. Compared to a typical M4 carbine, the gun doesn’t require extreme precision to kill even at these long ranges, potentially making it one of the deadliest hand weapons in the Army's arsenal.