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.50 A.E. Load Data

Alternative names: .50 Action Express, 12.7×33mmボーアード

Our load data for caliber .50 A.E. covers 14 bullets from 6 manufacturers and a total of 882 load recipes. In addition, our members have shared 2 load recipes.

The .50 Action Express, commonly known as the .50 AE, is a large-caliber pistol cartridge that made a significant mark on the handgun world since its introduction. Developed by Evan Whildin of Action Arms in 1988, the cartridge was specifically designed to provide immense power in a semi-automatic handgun platform. It was originally intended for the Magnum Research Desert Eagle, a firearm famous for its movie appearances and imposing size. The .50 AE’s introduction marked a new chapter in the escalation of handgun cartridge power, becoming the most powerful mass-produced semi-automatic pistol round of its era. Its rimless, straight-walled case, and rebated rim design enabled reliable feeding and extraction in large-frame semi-auto pistols.

The primary application of the .50 AE is in big-bore, semi-automatic handguns, where it delivers energy levels rivaling those found in some magnum revolver cartridges. For ammunition reloaders, the .50 AE presents a unique challenge and an opportunity to experiment with high-powered handgun loads. While it's a niche cartridge, it attracts a dedicated following among those seeking maximum stopping power in a semi-automatic platform. Beyond target shooting, the .50 AE has found roles in handgun hunting and in personal collections as a novelty or “just because” caliber. The sheer size and recoil of the cartridge mean that it is not commonly chosen for personal defense, especially due to firearm size, muzzle blast, and overpenetration concerns, but it excels as a silhouette and steel plate competition round and for collectors seeking extreme performance.

Target species for the .50 AE primarily encompass large and tough game animals, given its tremendous energy. Handgun hunters using this caliber often take it into the field for hogs, black bear, deer, and similar-sized game, taking advantage of its exceptional terminal ballistics and heavy bullet weights. The capability to launch large-diameter bullets at high velocities translates to deep penetration and significant energy transfer, making it effective for ethical hunting when the shooter is skilled enough to place shots accurately. However, due to the typically heavy recoil and substantial firearm size, long shooting sessions or rapid follow-up shots can be challenging, so practice and familiarity are essential.

When it comes to typical bullet weights and other caliber characteristics, the .50 AE most commonly utilizes bullets in the 300- to 350-grain range. Factory loads typically launch a 325-grain bullet at around 1,400 feet per second, generating muzzle energies exceeding 1,400 foot-pounds. The case head diameter of the .50 AE is similar to the .44 Magnum, but the rebated rim allows it to be chambered in firearms designed for the .44 Mag, given appropriate modifications. Bullet diameters are typically .500 inches, and due to the substantial case capacity, handloaders have some flexibility with bullet selection and powder charges, always keeping safety and firearm limitations in mind. The high-pressure nature of this cartridge demands careful load development and strict attention to published maximums from reputable sources, as well as precision in crimping, overall length, and seating for reliable functioning. The .50 AE remains a unique choice for reloaders seeking top-tier handgun ballistics and a true “hand cannon” experience.

Suitable Powders

Bullet Weight (gr) ->
0-50
50-75
75-100
100-150
150-200
200-300
>300

👍 ... suitable powder 

👍👍 ... suitable AND popular powder among our reloading community  (clasification might evolve as more community members share their loads )

Caliber Specifications

Standard / Datasheet

Primer Size

Large Pistol Magnum (LPM)

Max. Case Length

51 Grains of Water

Bullet / Barrel Diameter

0.5'' | 12.7 mm

Max. Case Length

1.285'' | 32.64 mm

Max. Cartridge Length 

1.595'' | 40.51 mm

Max. Standardized Pressure:

33359 psi | 2300 bar

XXL ID

CID_826

.50 A.E. load data is available with the following bullets:

(most popular first)

Filter by Bullet Weight (Grains)

Weight vs. Velocity - Suitable Bullets for this Caliber

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Barrel Length  Variation vs. Velocity - by Bullet Weight

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