The Underwood .50 Action Express 300gr JHP load (Underwood part no. 510) pairs a 300-grain bonded jacketed hollow point with nickel-plated brass cases. Underwood’s page describes the bullet as a bonded-core design, with the jacket bonded to the core to virtually eliminate core-jacket separation and a hollow point cavity tuned to the caliber and bullet weight. The bullet leaves the barrel at 1580 fps and carries 1663 ft-lbs of muzzle energy. Underwood lists the load for medium game hunting and personal defense, and it comes in a 20-round box.

Key Specifications

• The cartridge is .50 Action Express, the large-bore handgun chambering this load is built for.
• The bullet weighs 300 grains, a heavy projectile suited to the big-bore case.
• The bullet is a bonded jacketed hollow point, designed to keep the jacket and core together as the cavity expands.
• Muzzle velocity is 1580 fps, a supersonic speed that keeps the trajectory flat for a handgun load.
• Muzzle energy is 1663 ft-lbs, the figure Underwood lists for this load.
• The case is nickel-plated brass, which resists corrosion and feeds smoothly.
• Each box holds 20 rounds, enough for a range session or a hunting trip.

Frequently Asked Questions

What is this .50 Action Express load listed for? Underwood lists it for hunting medium game and for personal defense.

What kind of bullet does it use? A 300-grain bonded jacketed hollow point, in which the jacket is bonded to the core to virtually eliminate core-jacket separation.

Can it be fired through a suppressor? Underwood lists this ammunition as safe to use in a suppressor.

Buy the Underwood .50 Action Express 300gr Jacketed Hollow Point, 20-Round Box

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