Lindcott Armory Pistol · SAAMI
.460 Rowland
High-pressure .45-caliber semi-auto cartridge that converts 1911-pattern pistols into field-capable handguns rivaling .44 Magnum.
- Caliber
- 0.452″ · 11.481 mm
- Introduced
- 1998
- Case
- Rimless
- Parent
- .45 ACP
- Primary use
- Hunting, Self Defense
- Status
- Active
- Introduced
- 1998
- Type
- Pistol
- Origin
- United States
- Inventor
- Johnny Rowland
- Manufacturer
- Clark Custom Guns, Rowland Conversions
- Standard
- SAAMI
- Status
- Active
- Availability
- Limited
- Case capacity
- 28.5 gr H₂O
- Twist (typical)
- 1:16
- Primer
- Large Pistol
- Case type
- Rimless
- Max pressure
- 40,000 psi
- Eff. range
- 75 yd
- Max range
- 150 yd
- Recoil
- 6–10 ft·lb
- Subsonic
- Capable
Ballistics
- By real loads
- 1,340–1,575 fps · 21 loads
- Parent case
- .45 ACP
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Performance
Buy links open .460 Rowland 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 · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 11.48 | 0.452 | · |
| Neck ⌀ | 12.01 | 0.473 | ~ |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 12.09 | 0.476 | · |
| Rim ⌀ | 12.19 | 0.480 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.24 | 0.049 | ~ |
| Neck length | n/a | ||
| Case length | 24.31 | 0.957 | · |
| Overall length | 32.39 | 1.275 | · |
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. .460 Rowland is highlighted below.
Factory loads
In production — 21 active loads across 15 brands. Top 15 shown · see all 21 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC |
|---|---|---|---|---|---|---|
| CorBon | Performance | 185 | JHP | 1,575 | 1,019 | — |
| DoubleTap | Tactical | 185 | JHP | 1,575 | 1,019 | — |
| DoubleTap | Defense | 185 | JHP | 1,575 | 1,019 | — |
| Underwood | JHP +P | 185 | JHP | 1,550 | 987 | — |
| Buffalo Bore | JHP | 200 | JHP | 1,450 | 934 | — |
| Federal | Premium | 200 | JHP | 1,450 | 934 | — |
| Cor-Bon | Hunter | 200 | JHP | 1,440 | 921 | — |
| Buffalo Bore | Heavy | 230 | JHP | 1,400 | 1,001 | — |
| Speer | Gold Dot | 230 | Gold Dot HP | 1,350 | 931 | — |
| DoubleTap | Defense | 230 | JHP | 1,350 | 931 | — |
| Winchester | PDX1 | 230 | Bonded JHP | 1,350 | 931 | — |
| Doubletap | DT Defense | 230 | Jacketed Hollow Point | 1,340 | 917 | — |
| HSM Ammunition | Self Defense | 230 | Jacketed Hollow Point | 1,340 | 917 | — |
| Cor-Bon | DPX | 230 | Jacketed Hollow Point | 1,340 | 917 | — |
| Wilson Combat | .460 Rowland | 230 | JHP | 1,340 | 917 | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Suitable powders
7 reloading powders listed for .460 Rowland, 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.
Firearms chambered in .460 Rowland
1 model in the database chamber .460 Rowland. Browse all →
Lineage
Connected reference
History
Developed in 1998 by Johnny Rowland and Clark Custom Guns. The .460 Rowland was designed to give 1911 pistol owners near-.44 Magnum performance via a barrel and compensator conversion kit. The extra 1/16" case length prevents dangerous chambering in standard .45 ACP guns. Adoption has been limited to handgun hunters and wilderness defense users.
FAQs
- What twist rate does .460 Rowland use?
- .460 Rowland typically uses a 1:16 twist rate.
- What bullet diameter is .460 Rowland?
- .460 Rowland uses a 0.452″ (11.481 mm) diameter bullet.
- Is .460 Rowland still in production?
- .460 Rowland is active; typical availability is limited.
- What is .460 Rowland used for?
- .460 Rowland is primarily used for hunting, self defense.
- What is .460 Rowland based on?
- .460 Rowland is derived from the .45 ACP (lengthened) case.
- What are the best powders for .460 Rowland?
- Reloading powders commonly listed for .460 Rowland include Universal, HP-38, Herco, Longshot, among 7 suitable options.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 21 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →