US Army Snipers in Afghanistan will be having their M24 Sniper rifles replaced with the new XM2010 rifle starting next month. The Army's new contract with Remington Arms calls for Remington to either manufacturer new or convert existing M24's, to make 3,600 XM2010's, which will all be chambered in .300 Winchester Magnum
Here are some photos of soldiers with the new rifle:
And here is a link to some news reports about it:
Looks like quite a major upgrade to me.
In a related note, the Army also announced that they have ordered 14,000 of the the new M4A1, which has a new barrel for improved accuracy. In addition, they plan to order 65,000 kits next year to convert existing M4 carbines to the M4A1.
Here is a photo of the new M4A1: