Rifle · CIP
5mm/35 SMc
5mm/35 SMc is a rimless bottlenecked rifle cartridge of United States origin.
- Caliber
- 0.2039″ · 5.179 mm
- Introduced
- 2004
- Case
- Rimless
- Parent
- 6mm BR Norma
- Primary use
- Hunting
- Status
- Active
- Introduced
- 2004
- Type
- Rifle
- Origin
- United States
- Inventor
- Michael McPherson and Byrom Smalley
- Manufacturer
- Michael McPherson and Byrom Smalley
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 39.5 gr H₂O
- Twist (typical)
- 1:10.5
- Primer
- Small Rifle
- Case type
- Rimless
- Max pressure
- 63,817 psi, CIP transducer
- Eff. range
- 400 yd
- Max range
- 2000 yd
- Recoil
- 2.4–2.7 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 5mm/35 SMc, 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
- 6mm BR Norma
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.
Wikipedia · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 5.18 | 0.204 | · |
| Neck ⌀ | 5.95 | 0.234 | · |
| Shoulder ⌀ | 11.68 | 0.460 | · |
| Shoulder angle | 43.5° | — | |
| Base ⌀ | 11.96 | 0.471 | · |
| Rim ⌀ | 12.01 | 0.473 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 0.40 | 0.016 | · |
| Neck length | 5.35 | 0.211 | |
| Case length | 39.52 | 1.556 | · |
| Overall length | 51.56 | 2.030 | · |
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. 5mm/35 SMc is highlighted below.
Missing a dimension for 5mm/35 SMc? Some case measurements aren't in a published SAAMI/CIP drawing yet. Have a factory or reamer print? Send it → — verified hard-to-find data earns a free Lindcott sticker.
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
Introduced around 2004 by Michael McPherson and Byrom Smalley, derived from the 6mm BR Norma.
FAQs
- What twist rate does 5mm/35 SMc use?
- 5mm/35 SMc typically uses a 1:10.5 twist rate.
- What bullet diameter is 5mm/35 SMc?
- 5mm/35 SMc uses a 0.2039″ (5.179 mm) diameter bullet.
- Is 5mm/35 SMc still in production?
- 5mm/35 SMc is active; typical availability is limited.
- What is 5mm/35 SMc used for?
- 5mm/35 SMc is primarily used for hunting.
- What is 5mm/35 SMc based on?
- 5mm/35 SMc is derived from the 6mm BR Norma case.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
