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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. In other words, it gives the Soldier breaching capability on fortified positions, while minimizing exposure to enemy fire, thanks to its effectiveness at greater distances. Also in the works are a number of specialized rounds, ranging from solid core AP ammunition to non-lethal/ crowd control munitions utilizing inert rubber balls, and RC agents.
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). Historically, long range shooting has been a highly technical endeavor in which the shooter had to make a number of calculations before the trigger could be pulled. These calculations included range to the target, the effects of barometric pressure and air temperature, and the type of ammunition loaded. BORS automatically calculates all these variables, and adjusts the sight reticule accordingly. All the shooter needs to do is enter the ammunition type into the BORS (using touch pads on the BORS console) determine the range (either mechanically or through a LRF) and crank the elevation knob on the scope until the proper range appears in the BORS display. 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.
The Block I version of BORS is available now, while Block II (which will include an integrated range finder) is expected to become available in '05 with Block III (new optics, Night Vision capable, wide angle, stabilized image) becoming available in '06. Lastly, Barrett believes that the BORS system will be completely compatible with the 200mm air-bursting grenade featured on the OICW and that similar ammunition could be developed for use in the XM-109, as well as adapting the BORS to the OICW, to provide ranging and environmental information to the 20mm grenade launcher.
Originally posted by GrOuNd_ZeRo
And I thought that it fired the low velocity 25mm round employed by the OCSW? (Objective Crew Served Weapon).
That's crazy, that's having similar firepower of the Bradley's Bushmaster cannon on a scoped rifle! the recoil on that thing must be monstrous, even for a Barrett rifle!
Originally posted by ludaChris
I doubt you could kill a tank with it
Originally posted by urmomma158
I wonder how it stacks up to the 14.5 mm APFSDS sniper rifle?? any opinions on a comparison??