Price range: $92.34 through $1,439.07
New unprimed 380 ACP NAS3 Cases from Shell Shock Technologies are 50% lighter than brass cases. These lightweight .380 ACP cases offer greater lubricity and will not abrade, clog, foul, wear-out or damage breech and ejector mechanisms. The nickel alloy .380 ACP cases provide greater corrosion resistance, higher tensile strength, and more elasticity than brass while delivering consistent .380 ACP performance. 380 ACP NAS3 Cases have been tested successfully to pressures over 50k psi, eject cool to-the-touch, and can be picked up with a magnet. These cases are specifically engineered for repeated hand loading and provide reliable function across a wide range of .380 ACP firearms.
New unprimed 380 ACP NAS3 Cases.
Shell Shock’s 380 ACP NAS3 Cases are 50% lighter than brass cases, offer greater lubricity and will not abrade, clog, foul, wear-out or damage breech and ejector mechanisms. The cases offer greater corrosion resistance, higher tensile strength (2x stronger) and more elasticity than brass. NAS3 cases have been tested successfully to pressures over 50k psi. NAS3 cases eject cool to-the-touch and can be picked up with a magnet.
These lightweight .380 ACP cases are engineered for repeated hand loading using S3 Reload dies. The complete set of S3 Reload dies can be found here: https://s3reload.com/product/380acp-s3-reload-and-lee-sizing-flaring-dies-for-shell-shock-nas3-cases/ along with detailed information, setup instructions, and instructional videos.
The bullet requires only a light crimp. The nickel alloy used in the case cylinder has a much higher tensile strength than brass and does not require the bullet to be seated as deeply or crimped as aggressively as with brass cases. If the bullet spins or appears loose after crimping, it is a strong indication that the bullet is seated too deep in the case. Several of our testers have also reported that NAS3 cases may not require resizing to fit in certain gun chambers.
These lightweight .380 ACP cases and unprimed .380 ACP cases deliver excellent results for hand loaders who want reliable .380 ACP performance without the drawbacks of traditional brass. Because the material springs back close to its original dimensions after firing, hand loaders often find these cases maintain consistent chambering and extraction over many cycles.
These advanced cases deliver meaningful advantages across primary user groups. Civilian concealed-carry and hand-loading enthusiasts appreciate the substantial weight reduction of these lightweight .380 ACP cases, allowing more ammunition to be carried comfortably in popular micro-compact and pocket pistols. Law enforcement professionals value the enhanced durability, corrosion resistance, and reduced wear on duty and backup firearms, supporting reliable function when it matters most. Military and professional users benefit from significant weight savings in sidearm loads, improving mobility and logistics efficiency while the high-tensile construction maintains performance across demanding environments.
When hand loading unprimed .380 ACP cases, these cases pair exceptionally well with common projectiles in the caliber. Use 85–95 grain FMJ projectiles for high-volume practice or range sessions, and premium 90–100 grain JHP designs (such as Hornady Critical Defense FTX, Federal HST, or Speer Gold Dot) for defensive or duty hand loads. The superior material properties of these nickel alloy .380 ACP cases promote consistent .380 ACP performance and reliable cycling across a wide range of .380 ACP handguns. Many hand loaders also report smoother feeding in micro-compact pistols compared to traditional brass.
NAS3 cases feature a unique two-piece construction consisting of a high-tensile nickel alloy cylinder paired with a lightweight aluminum base. This design provides the strength and elasticity needed for repeated hand loading while significantly reducing overall weight. The aluminum base helps minimize wear on ejector mechanisms, and the nickel alloy cylinder resists corrosion far better than conventional brass. This combination makes these cases particularly well suited for .380 ACP firearms used in concealed carry, backup, and professional roles where reliability and reduced weight are priorities.
More information on the S3 Reload dies designed specifically for hand loading these cases (including instructional videos) can be found at the link above. The primary difference between these dies and conventional loading dies is the spring-loaded mechanism that pushes the case out from the center instead of pulling from the case rim (extraction groove).
| Pack Size | 500, 1000, 1500, 3000, 5000, 10000 |
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