Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
For shooters running suppressed or unsuppressed AR-15 pistols and SBRs in 300 Blackout ammo, the Fiocchi Range Dynamics 150-grain Full Metal Jacket round offers a supersonic training load that mirrors heavier hunting bullet trajectories at a fraction of the cost. At 1925 feet per second from the muzzle, this load stays supersonic well past 100 yards, giving you audible feedback on steel and consistent point-of-impact shifts when you transition from subsonic defensive rounds. The 150-grain projectile sits in the middle weight class for .300 BLK — heavy enough to stabilize in 1:7 and 1:8 twist barrels, light enough to keep chamber pressures moderate in short barrels. Fiocchi loads this ammunition at their Ozark, Missouri facility to SAAMI specifications, using non-corrosive Boxer primers and reloadable brass cases that seat and extract cleanly in mil-spec AR chambers.
Performance at a Glance
| Spec | Value |
|---|---|
| Caliber | 300 AAC Blackout (7.62x35mm) |
| Bullet weight | 150 grains |
| Bullet type | Full Metal Jacket |
| Muzzle velocity | 1925 fps |
| Muzzle energy | 1234 ft-lbs |
| Rounds/box | 50 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Velocity rating | Supersonic |
| Intended use | Range & Target |
| Manufacturer | Fiocchi |
This load runs clean in gas systems tuned for M193 or M855 — the 1234 ft-lbs of muzzle energy sits between lightweight varmint loads and heavy subsonic rounds, so you can dial your adjustable gas block once and leave it. Brass cases eject consistently at 3-4 o’clock in properly-gassed rifles, and spent primers punch out with hand tools when you’re ready to reload. For 300 Blackout ammo shooters who burn through cases by the thousand, the Range Dynamics line delivers the shot-to-shot consistency Fiocchi’s match ammunition is known for, at a price point that lets you focus on trigger control instead of cost per round.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Always keep firearms pointed in a safe direction, treat every firearm as if it is loaded, keep your finger off the trigger until ready to fire, and be certain of your target and what lies beyond it.
- Verify your rifle is chambered in 300 AAC Blackout before loading — never chamber .300 BLK ammunition in a 5.56 NATO or .223 Remington rifle.
- This product contains lead, a chemical known to the State of California to cause cancer and reproductive harm — use adequate ventilation when shooting indoors and wash hands after handling ammunition.
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