Originally posted by: MacBaine
Originally posted by: Pudgygiant
What's the difference between the XM8 and the OICW?
edit
http://www.fas.org/man/dod-101/sys/land/oicw.htm for those that don't know about the OICW
Those look big, bulky, and ugly. They also apparently failed.
As I recall, the XM-8 is the lower half of the OICW. The 25mm grenade launcher part was separated when they realized the weight was an issue, but it is still in the plans for the Army. They want to do more R&D on the launcher and will likely issue it as a separate weapon initially. There's a new 25mm sniper rifle that was developed by Barrett which may also be able to fire the 25mm grenades. Read an article either earlier this year or last year on the OICW. Bottomline is they wanted a new weapon to replace the -16 variants as soon as possible and didn't want to wait for the entire OICW.
As for the ammunition/calibre, the Army has been testing the 6.8mm round mentioned above with special operations folks in Afghanistan, who apparently like it. However, since it's a higher powered round, that requires more training to use properly so it probably won't be the round for the masses. I would expect that the XM-8 can be rechambered for the 6.8mm as a result, but never underestimate the incompetence of the procurement people.