AM19_5_56mm_55gr.doc

NOTES

ATTACHMENT B

SPECIFICATIONS AND REQUIREMENTS

1. The contractor shall furnish ammunition in accordance with specifications shown below.

2. CLIN 0001, (AM19) AMMUNITION RIFLE, 5.56 CALIBER 40-55gr:

a. BULLET: 40-55 Grain Sierra Blitz King 1st choice, also acceptable optiop #2 40-55gr Hornady VMAX.

b. PRIMER & BRASS: New production, One lot of brass production, Must appear visually as new brass 7 or 10 year old production brass is unacceptable, also unacceptable corroded discolored brass or dented brass. Military Specs for brass hardness. Military Specs for primers 1st choice 205MAR or CCI #41 primers crimped in the brass. No waterproofing necessary on case mouth. Primers can be water proofed but not necessary.

c. CARTRIDGE LENGTH: Over length not to exceed 2.250 inches when measured from tip of the bullet to the base of the cartridge.

d. MUZZLE VELOCITY: Muzzle velocity must average at least 3000 feet per second (FPS) (plus or minus 50 FPS) measured at ambient temperature. When fired from 20” 5.56mm barrels.

e. All ammunition provided will be from the same production run. No lot shall be smaller than 25,000 rounds. A lot shall consist of the same lot of propellant, bullets, primers, and brass.

f. CARTRIDGE LOT ACCEPTANCE: Cartridge samples from existing production lots will be tested by USAMU Prior to acceptance of each production lot. Lot acceptance samples will be 400rds. Cost for lot acceptance samples will be inclusive in contract.

f. ACCURACY STANDARDS Bolt Rifle: Must AVG than 2.5 inches extreme spread or less at 300 yards for five of each ten shot groups. Groups will be fired from an accuracy test bolt rifle, from an accuracy fixture. No one ten shot group shall exceed 3.5 inches.

g. ACCURACY STANDARDS M16 rifle: Must AVG than 3.75 inches extreme spread or less at 300 yards for five of each ten shot groups. Groups will be fired from an accuracy test match grade M16 rifle, from an accuracy fixture. No one ten shot group shall exceed 4.75 inches.

g. FUNCTIONAL CHARACTERISTICS: Candidate ammunition must function and operate routinely in M16 style rifles. Must meet standard military pressure and function specs for 55gr 5.56mm ammunition. Ammunition must burn clean and leave no residue. Ammunition primers will not pierce or fail during routine semi auto fire. Cases shall not rupture or separate during firing.

h. CARTRIDGE LOT ACCEPTANCE: Cartridge samples from EACH production lot will be tested by USAMU prior to acceptance of each lot. Each lot shall be tested individually. Lot acceptance samples will be 200rds. Cost for lot acceptance samples will be inclusive in contract. In order to keep procurement times reasonable, the samples must be delivered within 15 working days of notification. If any part of the above requirements fails, the entire sample fails, and the bid rejected. Ammo received must be identical to the sample approved. If it is determined that components or loads differ from those approved, the vendor shall be responsible for the total cost of replacement. If any part of the above requirements fails, the entire sample fails, and the bid rejected.