Norma Range and Training Features The Norma Range and Training 5.56 55 gr load is built around a full metal jacket projectile seated in a reloadable brass case with Boxer primer producing 3 250 fps and 1 289 ft-lbs of energy from a standard test barrel to ensure reliable feeding extraction and cycling across the full range of AR-15 and M4-pattern semi-automatic rifles chambered in 5.56x45 NATO. Norma applies consistent powder charges and uniform primer seating across every round delivering the shot-to-shot repeatability that allows shooters to focus on their technique and marksmanship fundamentals rather than accounting for ammunition variability. The reloadable brass case is a practical advantage for handloaders who collect range brass and the cleaner construction compared to steel-cased alternatives makes it a preferred training option for shooters who value case quality. For AR-15 and M4 shooters who want a structured 20-round training session with a premium brass-cased 5.56 load the Norma Range and Training 5.56 is purpose-built for consistent reliable range performance. The 20-round box format suits focused training drills zeroing exercises and per-session range work where a controlled round count and ammunition accountability matter as much as raw volume. Manufactured in Sweden to Norma s established quality standards each cartridge delivers the consistency and reliability that precision-oriented AR-15 shooters and carbine competitors need to get meaningful results out of their range time. The Norma Range and Training 5.56 55 gr FMJ 20-round box is available for sale at GrabAGun for AR-15 and M4-platform shooters who want a dependable brass-cased training load backed by over a century of Norma manufacturing expertise. Norma Range and Training Specifications Manufacturer: Norma Model: Range and Training Brand Family: Range & Training Bullet Type: Full Metal Jacket Caliber: 5.56MM Case Material: Brass Country Of Origin: Sweden Energy: 1289 Ft-lbs Grain: 55 Gr Lead Free: No Primer: Boxer Reloadable Case: Yes Rounds: 20 Velocity: 3250 FPS Capacity: 20 Available At: GrabAGun