1000 Rounds of 55gr FMJ 5.56x45 Ammo by Sellier & Bellot

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Fast Facts
  • Manufacturer Sellier & Bellot
  • Condition New
  • Weight 55gr
  • Projectile Type FMJ
  • Ammo Use Type Range Training
  • Casing Type Brass
  • Quantity 1000
  • Caliber 5.56x45
  • Manufacturer SKU SB223A
  • Primer Type Boxer
  • Muzzle Velocity (ft. per sec) 3283
  • Muzzle Energy (ft. pounds) 1317
  • UPC Barcode 754908516339
  • Cost Per Round 43.0¢ per round
  • Description
  • Reviews
  • Q & A
More Details About This Sellier & Bellot 55gr FMJ 5.56x45 Ammo

One of those most commonly asked questions about 5.56x45mm ammunition is its similarity to .223 Remington. Although they appear identical on the outside, they aren’t, and those differences are more than a little bit important. First and foremost, 5.56 is loaded to a higher internal pressure than .223, and that means not all rifles are capable of handling its greater strength. But they’re different in other ways, too, for example, because 5.56 NATO, the mil-spec round, is loaded with a longer, heavier bullet, the throat of the 5.56 chamber is now longer. That means firing a 5.56 round, with its longer throat, in a rifle chambered for .223 can produce even greater pressure than what the 5.56 was originally loaded with. Bottom line? 5.56 is for 5.56-chambered rifles, so don’t risk trying it in your .223-chambered one. The results could be more than you bargained for.

These 5.56 rounds are manufactured by Sellier &Bellot, a company founded in 1825 by German businessman Louis Sellier. He got the company started, but it was when he was joined by Jean Maria Nicolaus Bellot that it really took off. Sellier & Bellot has a solid reputation on a global level for their dedication to the production of good quality, competitively-priced ammunition. And with almost 200 years of experience manufacturing ammunition they’ve certainly got the process down. They’re an ISO 9001 certified company and earned the bronze medal in Deutsches Waffen Journal, earning the reader’s vote for ammunition. Production takes place at their long-time plant in Vlasim, Czech Republic.

At 55 grain these are lightweight rounds, so they’re capable of reaching fantastic speeds. They’re FMJ rounds specifically meant for target practice, tactical training, and plinking. Each round has amazing muzzle velocity at 3283 feet per second and delivers impressive power with muzzle energy at 1317 foot-pounds. There are 1000 target rounds in this box of ammunition, so you’re going to have ample opportunity to fire your favorite rifle. Even better, these are fresh brass cases with boxer primer, so you can reload them and spend even more time at the range. Place your order and feed your 5.56-chambered rifle.

(Although 5.56x45 NATO does fit in a .223 Remington chamber, the 5.56 is a military, high-pressure round and is not recommended for use in a .223 Remington chamber.)

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