Description
Remington UMC .223 Remington 55 grain Full Metal Jacket centerfire rifle ammunition is intended for range use, target shooting, and high-volume practice. Each round is loaded in reloadable brass cases and uses non-corrosive Boxer primers. This listing represents a 200-round box; the product is commonly packaged as a 4-box Mega Pack. The listed muzzle velocity for the 55 gr FMJ load is 3240 fps.
Key Specifications
- The caliber is .223 Rem / 5.56 NATO.
- The bullet weight is 55 gr.
- The bullet type is Full Metal Jacket.
- The case material is Brass.
- Each box contains 200 rounds.
- The case configuration is 4 boxes per case.
- Listed muzzle velocity is 3240 fps.
- Listed muzzle energy is 1282 ft lbs.
- Primary application is listed as Target Shooting.
- The brand style is UMC.
Built for consistent, high-volume range work, Remington’s UMC 55 gr FMJ loads deliver straightforward performance and reliable feeding across common service and sporting platforms. The reloadable brass cases and Boxer primers make these rounds practical for handloaders while the Mega Pack format helps keep the range stocked for extended practice sessions.





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