5.56mm x 45mm NATO, 77gr, Sierra MatchKing Hollow Point, IMI Brass, 500 rounds, Razor Core Mod 1 (MK262 Type), Ships out Quickly!!!!

SKU: 556-77-SMK-NEW-500-IMI Categories: , , Vendor: PH Brass and Bullets Brand:


34 in stock


5.56mm x 45mm NATO, 77gr, Sierra MatchKing Hollow Point, IMI Brass, 500 rounds, Razor Core Mod 1 (MK262 Type)

Technical Information

  • Caliber: 5.56 mm x 45 mm NATO
  • Bullet Weight: 77gr
  • Bullet Style: Sierra MatchKing Hollow Point
  • Case Type: IMI Brass Case, Boxer Primed, Crimped Primer, Lacquer Sealed, Fully Reloadable
  • Number of Rounds: 500

Ballistics Information:

  • Muzzle Velocity: 2740
  • Muzzle Energy: 1283 ft/lbs.

Quality IMI 5.56 x 45, 77gr Razor Core Mod 1(MK262 Type) ammunition uses the Sierra MatchKing OTM Bullet with cannelure. The case is annealed. It has a crimped and lacquered sealed primer for maximum Reliability and Accuracy. It is often in short supply. To help make stocking up on this precious ammo type easier for the average person, Green Country Ammo proudly offers this carry ready 5.56 ammunition, proudly produced by IMI Ammunition. Each package comes packed with 25 individually packaged 20 round boxes that will not only be a great option for individuals looking for peace of mind while protecting their home but also any individual that is interested in perfecting their shot at the range without spending a fortune. That is why so many people rely on this great bulk ammo option from Green Country Ammo!

In most cases, this product is ready to ship within a few days. Although, under times of unprecedented demand, these IMI 5.56mm x 45mm NATO rounds may take up to a week to ship.

Why Green Country Ammo?

Green Country Ammo is committed to keeping the largest selection of the best ammunition in stock to meet the unique demands of shooters and law enforcement officers across the country. With bulk ammunition that has been created from some of the top brass brands available, we are sure to have the perfect load type for your favorite firearms. Whether you are looking for 9mm, 380, 38 Special, 357, or other rounds for self-defense or just need bulk ammunition for the range, Green Country Ammo has you covered with the best ammo available at a price that will not break the bank!

All ammunition produced by Green Country Ammo or IMI Ammunition undergoes a stringent quality control process that ensures each cartridge is of the highest quality and safety. Most orders ship within 3-5 business days; however, we are a small shop and times may be extended based on currently shipping loads. If you have any questions, please contact us.

Additional information

Weight 18 lbs
Dimensions 15 × 7 × 7 in


Case Material





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Vendor Information

Vendor: PH Brass and Bullets