Lindcott Armory Pistol · SAAMI
9x23mm Winchester
The 9x23mm Winchester is a high-pressure semi-rimless pistol cartridge developed in 1996 for USPSA Open Division competition.
- Caliber
- 0.356″ · 9.042 mm
- Introduced
- 1996
- Case
- Semi-Rimmed
- Parent
- 9mm Winchester Magnum
- Primary use
- competition_shooting, self_defense
- Status
- Limited
- Introduced
- 1996
- Type
- Pistol
- Origin
- United States
- Inventor
- Winchester
- Manufacturer
- Winchester
- Standard
- SAAMI
- Status
- Limited
- Availability
- Rare
- Case capacity
- 15 gr H₂O
- Twist (typical)
- 1:10
- Primer
- Small Pistol
- Case type
- Semi-Rimmed
- Max pressure
- 55,000 psi
- Eff. range
- 50 yd
- Recoil
- 4–6.5 ft·lb
- Subsonic
- Capable
Ballistics
- By real loads
- 1,400–1,450 fps · 18 loads
- Parent case
- 9mm Winchester Magnum
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Performance
Buy links open 9x23mm Winchester ammunition at Rivertown Munitions.
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
SAAMI · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 9.04 | 0.356 | ✓ |
| Neck ⌀ | 9.68 | 0.381 | ✓ |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 9.93 | 0.391 | ✓ |
| Rim ⌀ | 10.01 | 0.394 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.27 | 0.050 | ✓ |
| Neck length | n/a | ||
| Case length | 22.86 | 0.900 | ✓ |
| Overall length | 33.02 | 1.300 | ✓ |
Size vs familiar rounds
Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. 9x23mm Winchester is highlighted below.
Factory loads
In production — 18 active loads across 15 brands. Top 15 shown · see all 20 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC |
|---|---|---|---|---|---|---|
| Remington | Golden Saber | 124 | BJHP | 1,450 | 579 | — |
| Doubletap | DT Defense | 125 | Jacketed Hollow Point | 1,450 | 583 | — |
| Federal | American Eagle FMJ | 125 | FMJ | 1,450 | 583 | — |
| Wolf | FMJ | 125 | Jacketed Hollow Point | 1,450 | 583 | — |
| CorBon | Performance | 124 | JHP | 1,450 | 579 | — |
| Black Hills | Match | 125 | Jacketed Hollow Point | 1,450 | 583 | — |
| HSM Ammunition | Self Defense | 125 | Jacketed Hollow Point | 1,450 | 583 | — |
| Winchester | Super-X FMJ | 125 | FMJ | 1,450 | 583 | — |
| Buffalo Bore | Heavy | 125 | Jacketed Hollow Point | 1,450 | 583 | — |
| Cor-Bon | JHP Competition | 124 | JHP | 1,450 | 579 | — |
| Cor-Bon | DPX | 125 | Jacketed Hollow Point | 1,450 | 583 | — |
| Speer | Gold Dot | 124 | Gold Dot HP | 1,450 | 579 | — |
| Winchester | Supreme Elite | 124 | JHP | 1,450 | 579 | — |
| DoubleTap | Defense | 124 | JHP | 1,450 | 579 | — |
| Federal | Personal Defense | 124 | JHP | 1,450 | 579 | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Suitable powders
6 reloading powders listed for 9x23mm Winchester, fastest to slowest. Cross-reference in the finder →
Reloading costestimate cost per round vs factory
Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.
Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.
Lineage
ⓘ Case is a shortened 9mm Win Mag (identical rimless .391 base/.394 rim head); .38 Super is semi-rimmed (.384/.406) — functional twin, not cas
Connected reference
History
Developed by Winchester in collaboration with the USPSA Open Division competitive shooting community. The goal was a 9mm-bore cartridge capable of meeting major power factor without the complexity of .38 Super tuning. The thick case web handles pressure safely in 1911-pattern Open guns. Despite logical design, the entrenched .38 Super Open community prevented widespread adoption, and the cartridge remains extremely niche.
FAQs
- What twist rate does 9x23mm Winchester use?
- 9x23mm Winchester typically uses a 1:10 twist rate.
- What bullet diameter is 9x23mm Winchester?
- 9x23mm Winchester uses a 0.356″ (9.042 mm) diameter bullet.
- Is 9x23mm Winchester still in production?
- 9x23mm Winchester is limited; typical availability is rare.
- What is 9x23mm Winchester used for?
- 9x23mm Winchester is primarily used for competition_shooting, self_defense.
- What is 9x23mm Winchester based on?
- 9x23mm Winchester is derived from the .38 Super case.
- What are the best powders for 9x23mm Winchester?
- Reloading powders commonly listed for 9x23mm Winchester include Universal, Herco, Longshot, HS-6, among 6 suitable options.
Sources & provenance
- StandardSAAMI — ANSI/SAAMI Z299 — Cartridge & Chamber Drawingsarchived
- Secondary9mm Winchester Magnum — Wikipedia (rimless, base .391, rim .394, length 1.160" — same head as 9x23 Win, confirming shortened-from relationship) · parent_cartridge
- SecondaryBlast From The Past: Revisiting the 9 mm Magnum 'Super Cooper' — American Rifleman/NRA (purpose-built case designed by John Ricco; .38 Super is functional benchmark, same 0.900" length, but tapered vs · parent_cartridge
- Secondary9×23mm Winchester — Wikipedia (infobox lists parent case = 9mm Winchester Magnum; case 0.900" rimless, base .391, rim .394, 55,000 psi) · parent_cartridge
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 18 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →