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6.5-300 Weatherby Magnum
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Caliber Specifications:
Caliber: | 6.5-300 Weatherby Magnum |
Bullet Diameter: | 0.264" | 6.71mm |
Primer Size: | Large Rifle Magnum (LRM) |
Max. Case Length: | 2.825" | 71.75mm |
Max. Cartridge Length / OAL: | 3.600" | 91.44mm |
Max. Standardized Pressure: | 64977 psi | 4480 bar |
Case Capacity: | 98.0 Grains of Water | 6.36 cm3 |
CID: | CID_1352 |
Last updated: | 2/20/2025 |
- The 6.5-300 Weatherby Magnum is a 6.5mm cartridge created by Weatherby in 2016 for the growing 6.5mm long-range rifle market. As what was then the newest in Weatherby's lineup, this cartridge was designed to directly compete with the 26 Nosler. Claimed by Weatherby to be the fastest 6.5mm cartridge available. Designed in a similar fashion as other Weatherby cartridges, it has a large-for-caliber case capacity, resulting in high velocities. When bullets with high ballistic coefficients are used, trajectories are extremely flat, allowing the projectile to retain a significant amount of energy downrange. These attributes make the 6.5-300 quite effective for long range hunting on medium-sized game.
Weight vs. Velocity - Suitable Bullets for this Caliber
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Barrel Length Variation vs. Velocity - by Bullet Weight
6.5-300 Weatherby Magnum load data available with the following bullets:
(most popular first)
Filter by Bullet Weight (Grains)
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