What characterises .300 PRC?
PRC stands for Precision Rifle Cartridge. .300 PRC is a distinct cartridge in the .30 group. It is not the same as .300 Winchester Magnum or .300 Norma Magnum. The PRC family itself also contains different cartridges with different dimensions.
PRC stands for Precision Rifle Cartridge. .300 PRC is a distinct cartridge in the .30 group. It is not the same as .300 Winchester Magnum or .300 Norma Magnum. The PRC family itself also contains different cartridges with different dimensions.
PRC is part of the name, not a competition class. The designation therefore does not automatically make the cartridge eligible for every PRS series. The relevant rules and range conditions apply.
Several ammunition versions can be offered under one cartridge designation. Their bullet construction and performance can differ. The drawing and dimension table explain external dimensions; the energy figures refer to selected source examples. One figure neither describes every version nor guarantees a universal range.
.300 PRC — Dimensions, energy and range
- A · Overall cartridge length: 93.98 mm
- B · Case length: 65.53 mm
- C · Bullet diameter: 7.83 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
- 65.53 mm
- Bullet diameter
- 7.83 mm
- Overall cartridge length
- 93.98 mm
- Muzzle energy E₀
- 5348 J (14.6 g ELD Match; catalogue 2020)
- Range context
- Sporting guidance according to PGM: approximately 1200 m / 1312.3 yrd – 1500 m / 1640.4 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: C.I.P. · Hornady · PGM · Source check 2026-10-04