NEMO Arms 5.56mm — 55gr FMJ Boat Tail (M193 Spec), 20-Round Box / 50-Box Case
Caliber: 5.56x45 NATO • Bullet: 55 Grain FMJ-BT (Full Metal Jacket, Boat Tail) • Packaging: 20 rounds per box | 50 boxes per case (1,000 rounds) • Intended Use: Training, carbine classes, target & drills • SKU: 556M193NA55FO • UPC: 850043943105
Train like you mean it. NEMO Arms 5.56mm 55gr FMJ Boat Tail ammunition is built for high-volume, high-confidence practice in AR-15 and other 5.56 NATO platforms. The classic 55-grain M193-style projectile delivers reliable feeding, consistent velocity, and a flat-shooting trajectory for everyday range work, zero confirmation, and carbine courses. Choose the 20-round box for casual sessions or stock up with the 50-box (1,000-round) case for classes, competitions, and season-long practice.
Why Shooters Choose NEMO Arms 55gr FMJ-BT
Dependable Training Load: The proven 55gr FMJ-BT profile cycles smoothly and prints predictable groups for drills, barricade work, and transitions.
Consistent Ballistics: Carefully loaded components support low ES/SD, helping you maintain a steady point of impact across different positions and strings of fire.
Boat Tail Efficiency: BT geometry improves aerodynamic stability for flatter trajectory and cleaner downrange performance compared to flat-base designs.
AR-15 Friendly: Brass cases, non-corrosive boxer primers, and clean-burning propellant promote reliable function in gas guns and bolt rifles chambered for 5.56 NATO.
Range-Day Value: Opt for the 50-box case to keep your training cadence uninterrupted and your zero validated with the same lot.
Key Features & Specs
Caliber: 5.56x45 NATO (use in 5.56 NATO chambers; .223 Rem chambers may be over-pressured)
Bullet Weight/Type: 55 grain Full Metal Jacket – Boat Tail (FMJ-BT)
Case: Brass, reloadable
Primer: Boxer, non-corrosive
Propellant: Clean-burning powder for consistent velocities
Packaging Options: 20-round box; 50-box bulk case (1,000 rounds)
Use Cases: Carbine classes, steel & paper target practice, zeroing, function checks
SKU: 556M193NA55FO • UPC: 850043943105
Chamber Note: Use in firearms marked 5.56 NATO or .223 Wylde for best results. Traditional .223 Rem-only chambers can produce higher pressures—consult your firearm manufacturer.
Real-World Performance Benefits
Flat & Familiar: The 55gr M193-spec projectile offers a known trajectory that’s easy to dope from 50 to 300 yards with common AR sight heights.
Cleaner Operation: Modern propellant and sealed, reloadable brass help keep actions running smoothly through high round counts.
Training Confidence: Lot-to-lot consistency means fewer mysteries with POI, allowing you to focus on recoil control, movement, and stage planning.
Ideal Use Cases
Defensive Carbine Courses & Qualifications
USPSA/2-Gun/3-Gun Practice (where FMJ is permitted)
Agency/Unit Training Days (confirm local/departmental ammo policies)
Weekly Range Sessions & New Shooter Onboarding
Zeroing & Dope Tips
50/200-Yard Zero: A popular choice for AR carbines to minimize hold-overs inside 250 yards.
Chrono Your Lot: Record a 10-shot string to refine ballistic calculators and confirm velocity out of your barrel length.
POI Consistency: Confirm shift when changing suppressors or switching from red dot to magnified optics.
Storage & Handling
Store ammo cool and dry, away from solvents and extreme temperatures.
Keep rounds in factory boxes or cans with desiccant for lot control and moisture protection.
Rotate stock first-in/first-out to maintain consistency.
SEO Highlights (Copy & Paste)
NEMO Arms 5.56 NATO 55gr FMJ Boat Tail training ammunition
M193-style 55 grain load in brass cases, non-corrosive primers
20-round box or 50-box case (1,000 rounds) bulk value
Reliable cycling for AR-15/5.56 NATO rifles; clean-burning powder
SKU 556M193NA55FO • UPC 850043943105
Frequently Asked Questions
Q: Is this 5.56 NATO or .223 Remington?
A: It’s 5.56x45 NATO. Use in 5.56 NATO or .223 Wylde chambers. Traditional .223 Rem-only chambers may see elevated pressure.
Q: Is the brass reloadable?
A: Yes—brass, boxer-primed cases are commonly reloadable. Follow safe reloading practices and inspect brass.
Q: Suitable for home defense?
A: This is a training/target FMJ load. For defensive roles, check your local laws and consider purpose-built expanding or barrier-blind ammunition.
Q: Will it run in my 1:7 twist barrel?
A: Yes—55gr bullets stabilize well in common AR twists (1:7 to 1:9). Confirm accuracy in your specific rifle.
Safety & Compliance
Use only in firearms in good mechanical condition and correctly chambered for 5.56 NATO. Always follow the four rules of firearm safety and comply with all local laws for purchase, storage, transport, and range use.
Train harder and smarter with NEMO Arms 5.56mm 55gr FMJ-BT (SKU 556M193NA55FO, UPC 850043943105)—the accurate, reliable practice load that keeps your AR running smoothly from zeroing to high-tempo drills.
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