ATK Corporate Overview Presentation

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ATK Ammunition and Powder Company 25mm Barrett
HEDP Cartridge20 July 2009
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Agenda

• Overview
• Tactical Employment
• ATK 25mm Barrett HEDP System
• Ammunition Development
• Existing LW30mm Technology
• ATK Development Efforts
• Static Spin Tests
• Penetration Test Results
• Summary

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Overview

• What is the ATK 25mm Barrett HEDP?
• High Explosive Point Detonating Rifle Delivered
  Shape Charge Munition
• Based on Apache 30mm M789 HEDP technology
• Off-the-shelf components and technology minimize
  development cost and time
• Testing demonstrates
• Average 1.75 RHA penetration at 500 meters
• Numerous rounds penetrate 2 RHA target plate
• 100 fuze function 20 meter no-arm safety
• Simulation and modeling indicates that the ATK
  25mm Barrett HEDP will penetrate in excess of 2
  of RHA armor at 1000 meters.

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Tactical Employment

• Snipers require responsive technologies to
  enhance their already substantial effectiveness.
  
• The lightweight 25mm Anti-Material Payload Rifle
  system is capable of interdicting light material
  and armored targets.
• C4ISR
• Mobile SCUDs
• Support Facilities
• Light Vehicles
• Aircraft and Fuelers
• Crew Served weapons

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25mm Barrett HEDP System

• The Barrett XM109 25mm Payload Rifle System is a
  unique weapon designed specifically to interdict
  light material targets.
• Is ready for production
• Kit conversion transforms Barrett .50 cal rifle
  to 25mm
• XM109 needs tactical ammunition for fielding
• Ammunition applicable to XM307 and XM25 system

Payload Rifle is mod to existing .50 cal
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ATK 25mm HEDP Ammunition Development Objectives

• Meet or exceed warhead performance criteria of
  1.25 RHA penetration
• Scale proven technology from existing LW30mm
  Apache ammunition
• Maximize off-the-shelf components and technology
  to minimize development costs and time
• Utilize modified liner components
• Modify M759 fuze to compensate for lower spin
  rate/provide safe arming
• Provide lightweight aluminum cartridge case

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Existing LW30mm Technology

• Developed in the 1980s for the M230 chain gun on
  the AH-64 Apache helicopter
• M789 High Explosive Dual Purpose (HEDP)
• M788 Target Practice (TP)
• ATK is the developer and only supplier of the
  M759 PD fuze
• ATK has produced in excess of 10 million LW30mm
  cartridges
• Scalable technology for 25mm application
• Shaped charge jet formation for AP capability
• Projectile body fragmentation for anti-personnel
  effects

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ATK Development Effort

• Two-Phase Development
• 25mm Anti Material Payload Rifle Assessment
• Determine the validity of developing a 25mm
  Barrett HEDP round for a 25mm Anti-Material
  Payload Rifle using static spin tests.
• 25mm ATK HEDP Tactical Cartridge Development
• Develop a tactical cartridge based on ballistic
  assessment, evaluate dynamic penetration
  performance using proposed 25mm HEDP
  requirements.

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Static Spin Test

• Penetration increases with range
• Testing exceeded predictions

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Penetration Results

• 2 RHA target at 500 meters
• Dynamic performance exceeded static and
  predictive expectations
• Average 1.75 RHA penetration
• Numerous rounds penetrated 2 RHA
• 100 fuze function 20 meter no-arm safety

2 RHA
Dynamic Test Target
Target 2 RHA
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Penetration Results Close-Up
Front
Back side Shot 5 Close-up
Target 2 RHA at 500m
Back side Shot 3 Close-up
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Summary

• The ATK 25mm Barrett HEDP is an accurate, safe,
  and lethal cartridge capable of penetrating in
  excess of 1.5 of RHA armor at a range of 500
  meters.
• Development success achieved by a disciplined
  approach to design and testing.
• Provides 250 lethality improvement over .50
  Caliber API at 1000 meters.
• Ammunition design is production ready and
  supports early fielding of 25mm Barrett Payload
  Weapon System.

ATK 25mm Barrett HEDP is ready now!