Handgun · Wildcat
.270 REN
A small .277 Contender wildcat built for small game and quiet, low-recoil loads..
- Caliber
- 0.277″ · 7.036 mm
- Introduced
- 1985
- Case
- Rimmed
- Parent
- .22 Hornet
- Primary use
- Self-Defense, Target
- Status
- Wildcat
- Introduced
- 1985
- Type
- Handgun
- Origin
- United States
- Inventor
- Charles Rensing / Jim Rock
- Manufacturer
- Handloaded only (wildcat; no factory ammunition)
- Standard
- Wildcat
- Status
- Wildcat
- Availability
- Rare
- Case capacity
- 16.2 gr H₂O
- Twist (typical)
- 1:8
- Primer
- Small Rifle Magnum
- Case type
- Rimmed
- Max pressure
- 49,000 psi, SAAMI transducer
- Eff. range
- 100 yd
- Max range
- 2950 yd
- Recoil
- 1.5 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .270 REN, 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
- .22 Hornet
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.
SAAMI · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.04 | 0.277 | · |
| Neck ⌀ | 7.49 | 0.295 | ~ |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 7.57 | 0.298 | ~ |
| Rim ⌀ | 8.89 | 0.350 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.65 | 0.065 | ~ |
| Neck length | n/a | ||
| Case length | 32.77 | 1.290 | · |
| Overall length | 48.26 | 1.900 | · |
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. .270 REN 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.
Lineage
Connected reference
History
The .270 REN was introduced in 1985 by Charles Rensing / Jim Rock, based on the .22 Hornet case.
FAQs
- What twist rate does .270 REN use?
- .270 REN typically uses a 1:8 twist rate.
- What bullet diameter is .270 REN?
- .270 REN uses a 0.277″ (7.036 mm) diameter bullet.
- Is .270 REN still in production?
- .270 REN is wildcat; typical availability is rare.
- What is .270 REN used for?
- .270 REN is primarily used for self-defense, target.
- What is .270 REN based on?
- .270 REN is derived from the .22 Hornet case.
Sources & provenance
- Reference Hornady — Hornady Handbook of Cartridge Reloading, 6th Edition (.270 REN load data) · grain weights, bullet ⌀, velocity
- Secondary SSAA (Sporting Shooters' Assn of Australia) / John Robinson — Wildcats · bullet ⌀ 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 →
