P_-_SOW_-_5.56mm_64GR_dated_March_21,_2019.pdf

Page 1 of 8 SOW: 5.56mm 64gr (+/-3gr) – AMMO dated 03/21/19

UNITED STATES SECRET SERVICE

STATEMENT OF WORK

CARTRIDGE, 5.56mm 64gr (+/-3gr) FMJ

SPECIFICATION

SECTION 1: SCOPE

1.1 GENERAL

This specification establishes the product and performance requirements for ammunition used by the U.S. Secret Service (USSS) for a 5.56mm caliber rifle platform. The Service’s standard issued rifle, with the 5.56mm 64gr (+/-3) projectile, will be used to support both investigative and protective activities. This contract will be awarded as a Firm-Fixed Price which will include a Base period and three (3) option periods.

1.2 DESCRIPTION

This specification enumerates all performance and other relevant characteristics for the 5.56mm National Atlantic Treaty Organization (NATO) standard cartridge. This specification is based mainly on performance, but includes critical dimensions and material requirements. The specification also establishes procedures and standards for quality assurance tests, daily production control, and acceptance tests.

SECTION 2: APPLICABLE DOCUMENTS

Small Caliber Ammunition Test Procedure (SCATP) – 5.56 – Pressure and velocity of Mil-Spec 5.56mm ammunition.

Department of Defense (DoD) 4145.26 M – DoD Contractor’s Safety Manual For Ammunition and Explosives dated March 13, 2008.

SECTION 3: REQUIREMENTS

3.1 DELIVERABLES – Ammunition

3.1.1 The Contractor shall deliver requested ammunition within ninety (90) days of contract award unless longer terms of delivery are specified on the individual order. All cartridges are to be manufactured in accordance with the specifications described herein.

3.1.2 The Contractor shall provide certified copies of all test and inspection results.

The test and inspection results shall be delivered prior to the delivery of the lot of ammunition that they pertain to.

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3.1.3 Minimum (Min)/ Maximum (Max)

Minimum Quantity Maximum Quantity Base Period – CLIN 0001 8000 rounds 2,500,000.00 rounds Option Period One (1) – CLIN 0002 8000 rounds 3,500,000.00 rounds Option Period Two (2) – CLIN 0003 8000 rounds 4,000,000.00 rounds Option Period Three (3) – CLIN 0004 8000 rounds 4,000,000.00 rounds

3.1.4 100% examination of cartridges. During or immediately prior to packaging operation, 100% examination of the cartridges shall be performed to ascertain that the cartridge type conforms to requirements 3.2 through 3.8. All non-conforming cartridges shall be rejected.

3.2 CALIBER

The caliber shall be 5.56mm NATO standard (Manual AC-225, Panel III/SP.1, D.200 and

STANAG 4172).

3.3 CASE

The cartridge case shall be a military 5.56mm copper alloy case manufactured in accordance with Army drawing 19200-9378276. Upon assembly, the case mouth shall be securely crimped into the projectile. A vent hole shall be present in the primer pocket of the cartridge case. The cartridge is designed to function in rifle and carbines for this caliber without modifications.

3.3.1 COMPONENTS

All components, packaging, and shipping materials shall be of new manufacture and shall look to be clean and in new condition.

3.3.2 HEADSTAMP

The cartridge case headstamp marking shall consist of the identification code of the manufacturer and the last two digits of the year of manufacture.

3.3.3 RESIDUAL STRESS

The cartridge case shall not split when subject to a 1% mercurous nitrate solution for 15 minutes.

3.3.4 PRIMER

The primer shall be a Military Standard (MIL-Spec) primer manufactured in accordance with Army drawing 19200-10534279 for M855 Ball ammunition.

3.3.5 PROPELLANT / PRIMER

The Contractor shall select the propellant and primer needed to achieve the minimum performance standards described in this specification. The primer must

Page 3 of 8 SOW: 5.56mm 64gr (+/-3gr) – AMMO dated 03/21/19 be NATO standard. The propellant and primers shall be newly manufactured (within 12 months). All cartridges within one lot shall be loaded with the same lot of propellant and the same lot of primers. The charge weight shall be selected by the vendor to meet the requirements of the specifications. The propellant must be approved by the Department of Transportation as a Class C explosive.

3.4 COMPLETE CARTRIDGE

3.4.1 PRIMER SEATING DEPTH

The primer shall be seated in the cartridge case to a depth of 0.000 to .008 inch below the face of the cartridge case head.

3.4.2 OVERALL LENGTH

Cartridge overall length. The overall length of the assembled cartridge shall not exceed 2.260 inches. Per drawings 53711-7379749 and 53711-7546870, 100% inspection is required to ensure that the maximum length is not exceeded. The overall length of the assembled cartridge shall not be less than 2.235 inches.

3.4.3 BULLET EXTRACTION FORCE

The force required to extract the projectile from the cartridge case shall be 30 pounds minimum.

3.4.4 WORKMANSHIP

Metallic components and the completed cartridge shall be free from folds, wrinkles, deep draw scratches, scaly metal, dents, burrs, and other defects. All components and complete cartridges shall be free from foreign material including, but not limited to, corrosion, stains, dirt, oil, grease, and metal chips.

Note: Completed cartridges shall be affixed to metal stripper clips (10-rounds each), mil-spec or equivalent.

3.5 BULLET

The bullet shall be a copper jacketed bullet with a lead core. The bullet weight shall be 64 grains +/- 3.0 grains. Individual bullet weight shall not vary by more than 2.0 grains per lot.

3.6 VELOCITY

3.6.1 The minimal nominal mean velocity at 15 feet from the muzzle shall be 2950 +/- 100 feet per second. Three (3) strings of ten (10) shots will be fired utilizing a 20 inch 5.56x45mm NATO specification (1:7 twist) test barrel mounted in a Universal Receiver, and an Oehler System 85 Ballistic Instrument and Model 57 Ballistic Screens. The cartridge being tested shall be handled in accordance with American National Standards Institute (ANSI)/SAAMIZ299.4.

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3.6.2 The velocity standard deviation for each ten round sample shall not exceed 50 feet per second.

3.6.3 If one (1) of the three (3) strings of ten (10) rounds do not meet the velocity requirements in 3.6.1 and 3.6.2, the lot shall be retested a maximum of two times of three (3) strings each. If velocity requirement is still not met, the lot shall be rejected.

Velocity tests shall be performed each production day to assure minimal variations within each lot.

3.6.4 Examinations. All fired cartridge cases and primers shall be visually examined to determine compliance with applicable requirements in the specification. In the event that fired cases or primer defects are encountered, or if a misfire occurs, then the test barrel shall be examined to determine if the defect is attributed to the barrel. If the barrel is at fault, then the test shall be disregarded and the barrel shall be repaired or replaced prior to performing a retest. If the defect cannot be attributed to the barrel, then the defect shall be attributed to the cartridges. Misfired cartridges and fired cartridge cases and primers shall be retained for further examination.

3.7 CHAMBER PRESSURE

3.7.1 The maximum mean chamber pressure (at 70 degrees) shall be in accordance with Stream Control Transmission Protocol (SCATP) protocols for 5.56x45mm ammunition utilizing a 20 inch 5.56x45mm NATO specification (1:7 twist) test barrel. The cartridge shall be handled in accordance with ANSI/SAAMI Z299.4.

3.7.2 Pressure tests shall be performed each production day to assure minimal variations within each lot.

3.8 ACCURACY

3.8.1 The extreme spread shall not exceed 3.00 inches at 100-yards for three (3) strings of ten (10) rounds fired utilizing a 20 inch 5.56x45mm NATO specification (1:7 twist) test barrel mounted in a Universal Receiver. The cartridge being tested shall be handled in accordance with ANSI/SAAMI Z299.4.

3.8.2 If one (1) of the three (3) strings of ten (10) round do not meet the accuracy requirements in 3.8.1, the lot shall be retested a maximum of one additional time.

If accuracy requirement is still not met, the lot shall be rejected.

4.1 FUNCTION TEST

4.1.1 Cartridges shall be function tested in a government Knight’s Stoner SR16 with an 11.5” barrel, utilizing the Magazine Puller “Magpul PMAG” 30 AR/M4, 5.56x45 Magazine with window (NSN 1005-01-615-5169).

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4.1.1.1 Thirty (30) cartridges shall be loaded into the magazine, and the bolt shall be closed without chambering a round.

4.1.1.2 The bolt shall be opened, pulled all the way to the rear and then released forward, feeding a cartridge into the chamber. The cartridge shall be fired in semi-automatic mode until both magazine and chamber empty.

4.1.1.3 The procedure described in 4.1.1.1 and 4.1.1.2 shall be repeated one time in full-automatic mode, utilizing 3-5 round bursts.

4.1.2 If one cartridge fails to feed, chamber, fire, eject, extract, prematurely fire, or leaves a bullet or fragment in the bore, the test procedure will be repeated. If one failure occurs during the second test, the lot shall be rejected.

4.3 LOT IDENTIFICATION

The contractor shall assign each lot of cartridges a unique identification number, which will permit identifying the day, month and year of manufacture, loading machine on which manufactured, and the lot of propellant and lot of primers used. Only one type and weight of propellant shall be used in a lot of cartridges. Each lot shall contain no more than one lot of primers and one lot of propellant. Individual components manufactured by more than one contractor shall not be used in a lot of cartridges. The contractor has the option to include additional information in the lot number.

4.4 Material Safety Data Sheets

Material Safety Data Sheets (MSDS) must be provided initially in response to this offer and at any time a component listed in previous MSDS is changed.

4.7 ACCEPTANCE

Final acceptance, inspection and testing shall be performed at destination, which is the James J. Rowley Training Center, Laurel, Maryland. The U.S. Secret Service shall perform pressure, velocity, accuracy, functioning, and dimensional acceptance testing in accordance with the statement of work/specifications under the contract. Ammunition failing to meet the specifications will not be accepted and shall be replaced by the contractor at no cost to the Government.

5.1 DEFINITIONS

5.1.1 Ballistic Coefficient – A measure of a bullet’s ability to resist air drag. This is a ratio of the sectional density of a bullet to its external shape.

5.1.2 Certified – A data worksheet, test report, or inspection report bearing the signature of the person completing the report, and the signature or initials of the supervisor.

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5.1.3 Pounds per Square Inch – A measure of chamber pressure derived by use of an electronic transducer. Pressure is the force per unit area, in this case the force is pounds and the unit area is square inch.

5.1.4 Extreme Spread – The diameter of the smallest circle which, when drawn on the target, contains the center of the holes for all rounds fired in this sample. When measuring, measurements are taken from the inside edge of one hole to the outside edge of the most distant hole.

APPENDIX A

ACCURACY TEST PROCEDURE

A.1 Scope. The accuracy test shall be performed to determine the uniformity and dispersion of the bullets at a specified distance from the test barrel.

A.2. Equipment

A.2.1 Test Barrels. The test barrels shall be a 20 inch 5.56x45mm NATO specification (1:7 twist) test barrel mounted in a Universal Receiver.

A.3 A total of three (3) strings of ten (10) shots shall be fired from the specified test barrel for record, with the target being changed after each 10 shot group.

A.3.1 Each target shall be measured to determine the maximum spread of each 10 shot group. This shall be accomplished by measuring the center-to-center distance between two bullet holes which are farthest apart. Measurement shall be accurate within plus or minus 0.01 inch and results shall be recorded to the nearest one-hundredth of an inch.

A.3.2. Misfired cartridges and fired cartridge cases and primers shall be retained for further examination.

A.4 Test Protocols

A.4.1 Cartridge Examination. If visual defects are found in the test cartridge prior to testing, the defective cartridge(s) shall be rejected.

A.4.2 Cartridge Conditioning. The required number of test cartridges shall be permitted to come to a temperature of 60 degrees to 80 degrees Fahrenheit prior to being placed in the controlled temperature room or container. The cartridges shall be placed in a controlled temperature room or container in such a manner that all the cartridges are subjected to a uniform temperature for a minimum of two hours prior to firing. The room or container shall be maintained at 70 degrees +/- 5 degrees Fahrenheit, and be of sufficient capacity to allow free circulation of air.

A.4.3 Barrel and Weapon Preparation. The test weapon and specified test barrel shall be thoroughly cleaned prior to the beginning of testing. The test weapon shall be lubricated using factory recommended lubrication. The weapon shall be

Page 7 of 8 SOW: 5.56mm 64gr (+/-3gr) – AMMO dated 03/21/19 maintained at room temperature for a minimum of two hours prior to the start of testing.

A.5 Examinations. All fired cartridge cases and primers shall be visually examined to determine compliance with the applicable requirements in the specification. In the event that fired case or primer defects are encountered, or if a misfire occurs, then the test barrel shall be examined to determine if the defect is attributable to the barrel. If the barrel is at fault, then the test shall be disregarded and the barrel shall be repaired or replaced prior to performing a retest. If the defect cannot be attributed to the barrel, then the defect shall be attributed to the cartridges. Misfired cartridges and fired cartridge cases and primers shall be retained for further examination.

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Evaluation Criteria

Ammunition will be awarded by Best Value to the Government in comparison with price and technical factors. The following factors shall be used to evaluate offers:

o Technical Factor (Testing) o Past Performance o Price ` `

Technical Factors and Price are of not equal value and are more important than Past Performance.

Ammunition that fails to pass any factor of specification(s) shall be considered technically unacceptable and no additional testing shall be performed

Material Safety Data Sheet (MSDS) shall be included with each product submitted.

Offeror shall provide complete component list of each cartridge at time of submission.

Post award: Offeror shall notify USSS of any change in components. Any change must be approved by the USSS prior to delivery of the cartidges.

The Government reserves the right to issue a single or multiple awards, up to two

(2) different offerors, if more than one offeror meets all Statement of Work factors.

52.212-3, Offeror Representations and Certifications – Commercial Items (Nov

2017)

52.212-3, Offeror Representations and Certifications – Commercial Items (Nov 2017)