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.300 Win. Mag.
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Caliber Specifications:
Caliber: | .300 Win. Mag. |
Standard / Datasheet: | C.I.P. |
Bullet Diameter: | 0.308" | 7.82mm |
Primer Size: | Large Rifle Magnum (LRM) |
Max. Case Length: | 2.620" | 66.55mm |
Max. Cartridge Length / OAL: | 3.340" | 84.84mm |
Max. Standardized Pressure: | 62366 psi | 4300 bar |
Case Capacity: | 90.5 Grains of Water |
CID: | CID_380 |
- The .300 Winchester Magnum (Win. Mag) is a powerful and versatile cartridge developed in the early 1960s. This round is known for its impressive velocity, excellent accuracy potential, and flat trajectories - making it one of the most popular rounds for marketing game animals from long distances.The .300 Win. Mag is also an ethical choice for hunters due to its ability to take down large game humanely, even at extended ranges. Additionally, this caliber increasingly popular among target shooters due to its superior performance in all weather conditions and reliable precision accuracy.
- Bullet Weight (gr) ->0-5050-7575-100100-150150-200200-300>300
The following table indicates for this caliber and various bullet weight ranges (in grains) which powders are suitable (👍) and popular among our reloading community (👍👍). This might evolve over time as more community members share their loads and as we accumulate more calculations and tests with our balistics calculator.
Weight vs. Velocity - Suitable Bullets for this Caliber
You need to get an access license to view this chart. See an example with the following caliber: .22 Nosler
Barrel Length Variation vs. Velocity - by Bullet Weight
Number of loads in this caliber shared by community members:
260
.300 Win. Mag. load data available with the following bullets:
(most popular first)
Filter by Bullet Weight (Grains)
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