Ammo Reports Team
| Feature | Detail |
|---|---|
| Primary Use | Range training, target shooting, and high-volume practice |
| Bullet Type | 55-grain full metal jacket boat tail (FMJBT) |
| Case | Brass (short-action) |
| Primer | Boxer (Small Rifle Primer) |
| Packaging | 50 rounds per box |
| Typical Price | $29.79/50-round box – approximately $0.60/round |
| Closest Competitors | Norma Range & Training 5.56 NATO 55 Grain FMJ; Winchester White Box 5.56 NATO 55 Grain FMJ; Wolf Gold 5.56 NATO 55 Grain FMJ |
Official Specs
| Spec | Value | Source |
|---|---|---|
| Muzzle Velocity (fps) | 3,240 | Fiocchi official ballistic catalog, 20-inch test barrel |
| Muzzle Energy (ft-lbs) | 1,282 | Fiocchi official ballistic catalog |
| Bullet Weight | 55 gr | Fiocchi official product data |
| Bullet Type | Full Metal Jacket Boat Tail (FMJBT) | Fiocchi official product data |
| BC G1 | 0.243 | Fiocchi official ballistic catalog |
| BC G7 | – | Not found in verified official manufacturer sources |
| Manufacturer SKU | 556M193L | Fiocchi official product data |
| UPC | 762344712062 | Verified exact product identification |
| Case Material | Brass (short-action) | Factory-load construction |
| Primer | Boxer (Small Rifle Primer) | Factory-load construction |
| Reloadable | Yes | Brass case with Boxer primer |
| Package Quantity | 50 rounds | Fiocchi official catalog |
Verification note: Exact SKU 556M193L is the 50-round Range Dynamics configuration. Fiocchi publishes 3,240 fps, 1,282 ft-lbs, and G1 BC 0.243 for this load from a 20-inch test barrel.
Ballistics Table
Velocity, energy, and available trajectory values through 500 yards are official Fiocchi manufacturer data for exact SKU 556M193L. Fiocchi does not publish the missing trajectory cells, 10 mph wind drift, or verified values at 600 and 700 yards for this table.
| Range (yd) | Velocity (fps) | Energy (ft-lbs) | Trajectory (in) | 10 mph Wind Drift (in) |
|---|---|---|---|---|
| 0 | 3,240 | 1,282 | – | – |
| 100 | 2,837 | 983 | 0 | – |
| 200 | 2,468 | 744 | -2.9 | – |
| 300 | 2,128 | 553 | -11.5 | – |
| 400 | 1,817 | 403 | – | – |
| 500 | 1,540 | 290 | – | – |
| 600 | – | – | – | – |
| 700 | – | – | – | – |
Manufacturer conditions: 20-inch test barrel and 100-yard zero. Sight height, atmospheric conditions, and wind convention were not stated in the verified table. Blank cells are intentional.
M193 Specification and What It Means
The Fiocchi Range Dynamics 5.56 NATO 55 gr load is described as built to M193 specification, the original U.S. military standard for 5.56×45mm ammunition established in the 1960s. M193 calls for a 55-grain FMJ projectile at approximately 3,250 fps from a 20-inch barrel, with a specific pressure ceiling and dimensional standard. Understanding this matters for buyers because 5.56 NATO and .223 Remington are not identical — 5.56 operates at higher chamber pressure and requires a rifle chambered in 5.56 or a .223 Wylde chamber to be fired safely at full pressure. A firearm marked .223 Remington only should not be used with 5.56 NATO ammunition.
The M193 standard also informs terminal behavior. At velocities above approximately 2,700 fps, the 55 gr FMJ is known to fragment upon impact, which is relevant context for those using this load for any purpose beyond range work. For pure high-volume training, the M193 spec ensures consistent chamber pressures and reliable cycling in AR-15 platforms built to mil-spec dimensions.
Best Uses
Good fit:
- High-volume AR-15 training sessions where cost-per-round matters
- Steel plate shooting and general target work at 100–300 yards
- Function testing and break-in for new 5.56 NATO or .223 Wylde chambered rifles
- Carbine courses and drills requiring consistent feeding and reliable cycling
- Shooters who reload brass and want Boxer-primed, reusable brass casings
Not the right tool for:
- Precision or competition shooting requiring match-grade consistency
- Hunting applications — FMJ bullets are prohibited for deer and most big game in most U.S. states
- Rifles chambered in .223 Remington only — 5.56 NATO operates at higher pressure
- Lead-free or indoor range requirements — this load contains a lead-core bullet
- Long-range work beyond 400 yards where trajectory and wind drift become significant factors
Reliability Notes
No standardized manufacturer reliability test results were found for exact SKU 556M193L across multiple firearms. Confirm feeding, extraction, ignition, and point of impact in the specific 5.56 NATO firearm and magazines used for training.
Competitors
- Norma Range & Training 5.56 NATO 55 Grain FMJ – a published bulk-pack training alternative.
- Winchester White Box 5.56 NATO 55 Grain FMJ – another published 55-grain FMJ load.
- Wolf Gold 5.56 NATO 55 Grain FMJ – a brass-cased M193-style alternative.
- PMC X-Tac 5.56 NATO 55 Grain FMJ-BT – another published 55-grain boat-tail FMJ load.
Price Reality
- At $29.79 per 20-round box, the per-round cost is approximately $1.49
- Case pricing (typically 1,000 rounds) for this load is not confirmed in available data; comparable 5.56 loads in bulk run approximately $0.55–$0.75 per round at case quantities when available
- Federal American Eagle 55 gr FMJ typically runs $0.10–$0.15 per round cheaper at box quantities, making it the primary price-pressure competitor
- PMC Bronze 5.56 often comes in $0.15–$0.20 lower per round, representing the budget floor for comparable quality
- At $1.49/round, this Fiocchi load sits in the mid-range tier for 5.56 NATO training ammunition — reasonable for occasional training use, but high for sustained high-volume practice compared to bulk alternatives
- A fair price for this load is under $1.30/round; anything above $1.60/round in normal market conditions represents an overpriced listing
Prices change. Check the Where to Buy block for current listings.
Where to Buy
Fiocchi Range Dynamics 5.56 NATO 55 Gr FMJ (Box)
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What is the exact Fiocchi product number?
The exact product is Fiocchi Range Dynamics SKU 556M193L with UPC 762344712062.
How many rounds are in the box?
Fiocchi lists 50 rounds per box for SKU 556M193L, not 20 rounds.
What muzzle velocity does Fiocchi publish?
Fiocchi publishes 3,240 fps from a 20-inch test barrel.
What ballistic coefficient is published?
Fiocchi publishes a G1 ballistic coefficient of 0.243. A verified G7 value was not found.
Are the ballistic values calculated?
No. The populated velocity, energy, and trajectory cells are manufacturer data. Unpublished cells remain blank.
