.300 Sherwood Load Data & Reloading Guide

Rifle

Also known as: .300 Sherwood Express, .300 Sherwood Magnum

About .300 Sherwood

The .300 Sherwood, developed in the early 20th century by the Westley Richards company, is a vintage British cartridge designed primarily for small game hunting and target shooting. This caliber emerged during a period when lightweight, low-recoil cartridges were gaining popularity for their efficiency in short to medium-range applications. Known for its use in small single-shot and bolt-action rifles, the .300 Sherwood reflected a time when precision and economy were often sought after by both sport shooters and hunters.

Technically, the .300 Sherwood is characterized by its straight-walled, rimmed case with a length of approximately 1.325 inches. Originally, it fired a lead bullet weighing around 140 grains, propelled at moderate velocities averaging 1,250 feet per second. These characteristics enable the .300 Sherwood to deliver adequate energy for its intended purposes without excessive recoil, making it a favorable choice for those pursuits that do not require long-range capabilities.

Ballistic performance of the .300 Sherwood is optimized for ranges within 150 yards, which fits well with its use in small game hunting and sports shooting. The typical bullet weights, often in the 140-150 grain range, ensure stability and manageable recoil. This makes it ideal for precision shooting in competitions focusing on accuracy with slower-moving, heavier projectiles. Its performance is consistent and predictable, which remains appealing to enthusiasts who value traditional shooting experiences.

For reloaders, the .300 Sherwood offers distinct advantages, particularly in terms of its simplicity and the availability of components. The cartridge's straight-walled case makes it easier to reload compared to bottleneck designs, and suitable cast lead bullets are relatively easy to produce or obtain. Reloading allows shooters to fine-tune their ammunition to achieve the best accuracy and efficiency for their specific rifles. This flexibility, combined with the caliber’s manageable ballistics, makes the .300 Sherwood a rewarding choice for both historical firearms collectors and practical field use.

Technical Drawing

.300 Sherwood cartridge dimensions, C.I.P.L3 = 39.37 mm, L6 = 51.82 mmL3 = 39.37 mmL6 = 51.82 mm

Based on C.I.P., the max. allowed case length is 1.550 in / 39.37 mm, the max. cartridge length is 2.040 in / 51.82 mm, and the max. allowed pressure is 20,305 PSI / 1,400 bar.

Technical Specifications

Maximum Pressure:20305 PSI / 1400 bar
Case Volume:23 Grains of Water
Primer Size:Small Rifle (SR)
Safety Standard:C.I.P. (Datasheet)
Bore Area:43.01 mm²
Barrel Diameter:0.3" / 7.6 mm
L3:1.550" / 39.37 mm
L6:2.040" / 51.82 mm

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Standard Load Data — .300 Sherwood

Select your desired cartridge and bullet weight below to access the corresponding load table. From there, you can choose any listed load recipe and transfer it directly into the ballistics calculator for further refinement, optimization, and precision tuning.

Frequently Asked Questions

The maximum pressure for .300 Sherwood is 20,305 psi | 1,400 bar.

.300 Sherwood typically uses a Small Rifle (SR) primer.

The case capacity of .300 Sherwood is approximately 23 grains of water (H₂O).