Shotgun · SAAMI
.410 Bore
The smallest production shotshell.
- Caliber
- 0.41″ · 10.414 mm
- Introduced
- 1874
- Case
- Rimmed
- Primary use
- Small Game, Pest Control, Youth
- Status
- Active
- Introduced
- 1874
- Type
- Shotgun
- Origin
- United Kingdom
- Inventor
- Various
- Manufacturer
- Various
- Standard
- SAAMI
- Status
- Active
- Availability
- Common
- Twist (typical)
- N/A (smoothbore)
- Primer
- 209 Shotshell
- Case type
- Rimmed
- Max pressure
- 13,500 psi
- Eff. range
- 25 yd
- Max range
- 100 yd
- Recoil
- 8–12 ft·lb
- Subsonic
- Capable
Ballistics
- By real loads
- 750–1,830 fps · 238 loads
- Parent case
- —
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Performance
Buy links open .410 Bore 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.
CIP TDCC · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 10.41 | 0.410 | ✓ |
| Neck ⌀ | 11.56 | 0.455 | ~ |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 11.94 | 0.470 | ✓ |
| Rim ⌀ | 13.60 | 0.536 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.52 | 0.060 | ~ |
| Neck length | n/a | ||
| Case length | 63.50 | 2.500 | ✓ |
| Overall length | 50.80 | 2.000 | ~ |
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. .410 Bore is highlighted below.
Factory loads
In production — 238 active loads across 44 brands. Top 15 shown · see all 240 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC |
|---|---|---|---|---|---|---|
| Remington | Express Slug | 1190 | Rifled Slug | 1,830 | 8,847 | — |
| Remington | Slugger | 218 | Slug | 1,830 | 1,621 | — |
| Remington | Slugger | 218 | Lead Slug | 1,830 | 1,621 | — |
| Winchester | Super-X | 218 | Lead Slug | 1,830 | 1,621 | — |
| Winchester | Super-X Slugs | 87 | Slug | 1,830 | 647 | — |
| Federal | TruBall | 218 | Rifled Slug | 1,830 | 1,621 | — |
| Federal | American Eagle | 88 | 1/5 oz Slug | 1,830 | 654 | — |
| Winchester | USA White Box | 88 | 1/5 oz Slug | 1,830 | 654 | — |
| Winchester | AA Target | 88 | 1/5 oz Slug | 1,830 | 654 | — |
| Winchester | Super-X Buckshot | 88 | 1/5 oz Slug | 1,830 | 654 | — |
| Remington | Express | 88 | 1/5 oz Slug | 1,830 | 654 | — |
| PMC | Bronze | 88 | 1/5 oz Slug | 1,830 | 654 | — |
| Fiocchi | Target | 88 | 1/5 oz Slug | 1,830 | 654 | — |
| PPU | Standard | 88 | 1/5 oz Slug | 1,830 | 654 | — |
| Sellier & Bellot | Slug | 87 | Rifled Slug | 1,830 | 647 | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Suitable powders
5 reloading powders listed for .410 Bore, 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 .410 Bore
12 models in the database chamber .410 Bore. Browse all →
Connected reference
History
The smallest practical shotshell, used for small game, pest control, and introducing youth to shotguns. Also chambered in revolvers (Taurus Judge, S&W Governor). Limited but dedicated market.
FAQs
- What twist rate does .410 Bore use?
- .410 Bore typically uses a N/A (smoothbore) twist rate.
- What bullet diameter is .410 Bore?
- .410 Bore uses a 0.41″ (10.414 mm) diameter bullet.
- Is .410 Bore still in production?
- .410 Bore is active; typical availability is common.
- What is .410 Bore used for?
- .410 Bore is primarily used for small game, pest control, youth.
- What are the best powders for .410 Bore?
- Reloading powders commonly listed for .410 Bore include Red Dot, International Clays, Green Dot, Winchester 296, among 5 suitable options.
Sources & provenance
- StandardSAAMI — ANSI/SAAMI Z299 — Cartridge & Chamber Drawingsarchived
- StandardC.I.P. — C.I.P. TDCC — Tables of Dimensions of Cartridges and Chambers
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 238 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
Lindcott Armory