« Comment Of The Day |
Main
|
So Good It's Bad. »
December 03, 2005
Big Freaking Gun
Nice:
The centerpiece of the XM-109 system is the 25mm HEDP ammunition it fires. A scaled down derivative of the low velocity 30mm HEDP M789 ammunition fired by the AH-64 Apache attack helicopter, the MX-109's 25mm ammunition has been judged to be 2.5 times more effective at destroying targets than a .50 caliber armor-piercing round. It is expected that this ammunition can penetrate nearly 40mm (an inch and a half) of armor plating at 500 meters, or blast open doors from around the corner.
To enable the shooter to engage targets out to 2,500 meters, Barrett has developed an integrated ballistic computer/ riflescope system known as BORS (Barrett Optical Ranging System).
The BORS automatically determines the temperature and barometric pressure, as well as the cant or tilt in the rifle itself, and incorporates these enviro-physical factors into its calculations. Once the proper range has been entered, the shooter need only put the target under the crosshairs and pull the trigger.
See the link for pic and more.