.375 SOCOM Load Data & Reloading Guide

Rifle

Also known as: .375 Special Operations Command, .375 SOCOM II

About .375 SOCOM

The .375 SOCOM is a modern cartridge developed as an alternative to larger caliber platforms for the AR-15 rifle. Emerging in the early 21st century, it was designed to meet the needs of hunters and sport shooters seeking a cartridge that delivers greater stopping power than standard 5.56 NATO or .223 Remington rounds, without requiring a larger firearm platform like the AR-10. This caliber offers versatility, allowing users to engage in medium to large game hunting while maintaining compatibility with lower receiver parts common to the AR-15.

The .375 SOCOM utilizes a straight-walled case, which facilitates reliable feeding and extraction in semi-automatic actions. It is typically loaded with bullets ranging from 180 to 350 grains. The .375 SOCOM balances bullet weight and velocity to produce significant energy with efficient terminal performance. With velocities often ranging from 1,900 to 2,200 feet per second, the cartridge provides robust performance at moderate ranges, making it suitable for regional game hunting scenarios and for target shooting with authority.

Ballistically, the .375 SOCOM can achieve energy levels adequate for ethically harvesting medium to large game such as deer, elk, and black bear. It supports a variety of bullet styles, including soft points and hollow points, which allow reloaders to tailor rounds for specific purposes such as controlled penetration or rapid expansion. Reloaders appreciate the ability to custom-load .375 SOCOM cartridges for applications that require different performance attributes, adjusting powder charges and bullet types to match their specific shooting needs.

The practical advantages for reloaders include the ease of brass availability and the diversity of components suitable for this caliber. The straight-walled case design is simpler to resize, and there is a wide range of compatible bullet offerings on the market. This versatility in handloading allows enthusiasts to experiment with different loads, enhancing both hunting effectiveness and shooting satisfaction while maintaining precision in their pursuits.

Technical Drawing

.375 SOCOM cartridge dimensions, C.I.P.L1 = 29.91 mm, L2 = 31.15 mm, L3 = 40.13 mm, L6 = 57.15 mmL1 = 29.91 mmL2 = 31.15 mmL3 = 40.13 mmL6 = 57.15 mm105.6°

Based on Wildcat, the max. allowed case length is 1.580 in / 40.13 mm, the max. cartridge length is 2.250 in / 57.15 mm, and the max. allowed pressure is 35,001 PSI / 2,413 bar.

Technical Specifications

Maximum Pressure:35001 PSI / 2413 bar
Case Volume:60 Grains of Water
Primer Size:Large Pistol (LP)
Safety Standard:Wildcat
Bore Area:70.16 mm²
Barrel Diameter:0.375" / 9.5 mm
L1:1.178" / 29.91 mm
L2:1.226" / 31.15 mm
L3:1.580" / 40.13 mm
L6:2.250" / 57.15 mm

Start Calculating to Develop your own Load Data for .375 SOCOM

Use our professional ballistics calculator to develop safe and accurate load recipes for .375 SOCOM.

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Standard Load Data — .375 SOCOM

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.

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137 gr
160 gr
185 gr
200 gr
220 gr
230 gr
235 gr
250 gr
255 gr
265 gr
270 gr
285 gr
300 gr

Subsonic Load Data — .375 SOCOM

Subsonic load recipes with muzzle velocities below the speed of sound. Select a combination to view the full load table.

Frequently Asked Questions

The maximum pressure for .375 SOCOM is 35,001 psi | 2,413 bar.

.375 SOCOM typically uses a Large Pistol (LP) primer.

The case capacity of .375 SOCOM is approximately 60 grains of water (H₂O).