Centerfire Rifle · Not SAAMI standardized
.22 BR
A benchrest accuracy cartridge formed by necking the 6mm BR Norma case down to .224 caliber, developed by the competitive benchrest community in the 1970s.
- Caliber
- 0.224″ · 5.69 mm
- Introduced
- 1978
- Case
- Rimless
- Parent
- .308 Winchester
- Primary use
- Competition
- Status
- Active
- Introduced
- 1978
- Type
- Centerfire Rifle
- Origin
- United States
- Inventor
- Benchrest community
- Manufacturer
- Benchrest community
- Standard
- Not SAAMI standardized
- Status
- Active
- Availability
- Common
- Case capacity
- 35.4 gr H₂O
- Twist (typical)
- 1:14
- Primer
- Small Rifle
- Case type
- Rimless
- Max pressure
- 62,000 psi, SAAMI transducer
- Eff. range
- 400 yd
- Max range
- 3300 yd
- Recoil
- 7.2–9.9 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .22 BR, so this is the shape gravity alone gives the advertised velocity. Drag would steepen it. The tool below solves real loads through their published G1 or G7 model.
Open in Ballistic Compare- Parent case
- .308 Winchester
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
reloading data · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 5.69 | 0.224 | ✓ |
| Neck ⌀ | 6.25 | 0.246 | ✓ |
| Shoulder ⌀ | 11.63 | 0.458 | ✓ |
| Shoulder angle | 30° | — | ✓ |
| Base ⌀ | 11.91 | 0.469 | ✓ |
| Rim ⌀ | 12.01 | 0.473 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.37 | 0.054 | ~ |
| Neck length | 6.60 | 0.260 | ≈ |
| Case length | 38.61 | 1.520 | ✓ |
| Overall length | 51.43 | 2.025 | |
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. .22 BR is highlighted below.
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 .22 BR
Lineage
Connected reference
History
The .22 BR was introduced in 1978 by Benchrest community, based on the 6mm BR Norma case (United States).
FAQs
- What twist rate does .22 BR use?
- .22 BR typically uses a 1:14 twist rate.
- What bullet diameter is .22 BR?
- .22 BR uses a 0.224″ (5.69 mm) diameter bullet.
- Is .22 BR still in production?
- .22 BR is active; typical availability is common.
- What is .22 BR used for?
- .22 BR is primarily used for competition.
- What is .22 BR based on?
- .22 BR is derived from the .308 Winchester case.
Sources & provenance
- Secondary AccurateShooter / 6mmBR.com (Robert Whitley et al.) — 22 BR Info Page (6mmBR family) · velocity, bullet ⌀, grain weights archived
- Secondary Wikipedia contributors — .22 BR Remington · year archived
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
