Rifle · Wildcat
R2 Lovell
Historic American varmint wildcat developed by Harvey Donaldson around 1934, based on the .25-20 Single Shot case necked to .22 caliber.
- Caliber
- 0.224″ · 5.69 mm
- Introduced
- 1934
- Case
- Rimless
- Parent
- .25-20 Single Shot
- Primary use
- varmint
- Status
- Active
- Introduced
- 1934
- Type
- Rifle
- Origin
- United States
- Inventor
- Harvey Lovell
- Manufacturer
- Harvey Lovell
- Standard
- Wildcat
- Status
- Active
- Availability
- Specialty
- Case capacity
- 10.5 gr H₂O
- Twist (typical)
- 1:14
- Primer
- Small Rifle
- Case type
- Rimless
- Max pressure
- 25,000 psi
- Eff. range
- 200 yd
- Recoil
- 30–42 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for R2 Lovell, 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
- .25-20 Single Shot
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.
Cartridges of the World · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 5.69 | 0.224 | · |
| Neck ⌀ | 6.27 | 0.247 | ~ |
| Shoulder ⌀ | 7.44 | 0.293 | ~ |
| Shoulder angle | 15° | — | · |
| Base ⌀ | 8.28 | 0.326 | ~ |
| Rim ⌀ | 9.91 | 0.390 | ~ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.52 | 0.060 | ~ |
| Neck length | 7.11 | 0.280 | ≈ |
| Case length | 41.40 | 1.630 | · |
| Overall length | 57.15 | 2.250 | ~ |
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. R2 Lovell 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
An experimental wildcat cartridge developed by R2 Lovell for ultra-long-range varmint shooting. Based on modified military surplus brass blown out to remove body taper. Achieved extremely high velocities for the caliber; primarily of academic interest as few rifles were ever chambered for it.
FAQs
- What twist rate does R2 Lovell use?
- R2 Lovell typically uses a 1:14 twist rate.
- What bullet diameter is R2 Lovell?
- R2 Lovell uses a 0.224″ (5.69 mm) diameter bullet.
- Is R2 Lovell still in production?
- R2 Lovell is active; typical availability is specialty.
- What is R2 Lovell used for?
- R2 Lovell is primarily used for varmint.
- What is R2 Lovell based on?
- R2 Lovell is derived from the .25-20 Single Shot case.
Sources & provenance
- Reference Gun Digest Books — Cartridges of the World (Gun Digest Books, F. C. Barnes)
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →