What characterises 6mm Creedmoor?
6mm Creedmoor and 6.5 Creedmoor are different cartridges. The shared word Creedmoor does not make them interchangeable. Even the abbreviation 6mm CM needs to identify this exact cartridge clearly.
6mm Creedmoor and 6.5 Creedmoor are different cartridges. The shared word Creedmoor does not make them interchangeable. Even the abbreviation 6mm CM needs to identify this exact cartridge clearly.
Precision shooting also uses other cartridges in the 6-mm group, such as 6mm ARC or 6mm GT. Similar bullet diameter is not enough to identify a specific product. Full names and the particular ammunition version therefore matter.
Also distinguish complete factory ammunition from individual components. A case offered in a catalogue is not yet a complete cartridge; a tool is another product category again. Claims about these products should not be mixed. The dimensions and sources on this page explain the cartridge itself. Whether a competition permits it is determined by the rules and event announcement, not by the name Creedmoor.
6mm Creedmoor — Dimensions, energy and range
- A · Overall cartridge length: 71.12 mm
- B · Case length: 48.77 mm
- C · Bullet diameter: 6.18 mm
Dimensions are taken from the table. Shape and proportions are simplified; the exposed bullet tip varies with the load. Not a scale standard or manufacturing drawing.
Drawing: Weitschuss
- Case length
- 48.77 mm
- Bullet diameter
- 6.18 mm
- Overall cartridge length
- 71.12 mm
- Muzzle energy E₀
- 2849 J (7.0 g ELD Match; catalogue 2020)
- Range context
- Sporting guidance according to PGM: 800 m / 874.9 yrd – 1200 m / 1312.3 yrd. Not a fixed performance limit.
Dimensions: C.I.P. maximum cartridge dimensions. Energy: one factory-ammunition example, test barrel 609.6 mm.
What the dimensions mean
Case length measures the case without the bullet; overall length measures the complete cartridge. Bullet diameter is distinct from bore calibre. Sources may give nominal or maximum dimensions, so rounded figures can differ slightly. This overview is not a dimensioned standard drawing and does not establish interchangeability.
Understanding energy
E₀ is kinetic energy at the muzzle. It depends on bullet mass and velocity. These figures refer to selected examples from the sources, not every load of this calibre. Bullet design, barrel length and test conditions affect the result. A range of examples is neither a complete market comparison nor guaranteed minimum and maximum performance.
Understanding range
A sporting application distance describes a use case. Supersonic range is the distance over which a particular bullet remains faster than sound under specified conditions. Both differ from maximum flight distance. The cartridge name alone cannot provide a reliable range limit without load and condition details. These distances are neither hunting recommendations nor safety distances.
Data sources: Wikipedia · C.I.P. · Hornady · PGM · Source check 2026-10-04