Airguns & Airsoft

50 Cal Air Rifle

A 50 cal air rifle is a Pre-Charged Pneumatic (PCP) big bore airgun that fires .50 caliber (12.7 mm) projectiles at velocities of 680 to 1,000+ feet per second (207 to 305+ m/s) and generates 200 to 800+ foot-pounds of energy (271 to 1,085+ J). Big bore air rifles in .50 caliber use compressed air stored at 3,000 to 4,500 pounds per square inch (psi) (207 to 310 bar) to launch lead slugs weighing 200 to 550 grains (13 to 35.6 g) for hunting medium to large game, including deer, hogs, and predators. This guide covers the Umarex Hammer, AirForce Texan, Seneca Dragon Claw II, other .50 caliber models, ammunition, ballistics, effective range, legal status, and accessories.

What Is a 50 Cal Air Rifle?

A 50 cal air rifle is a large bore airgun with a barrel bore diameter of .50 inches (12.7 mm) that uses pre-charged compressed air to propel heavy lead projectiles. The .50 caliber bore sits at the top of the big bore airgun range, which spans .257, .308, .357, .457, and .510 calibers. PCP big bore air rifles require an external air source, such as a hand pump, electric compressor, or carbon fiber tank, to fill the onboard air reservoir.

How Does a PCP Big Bore Air Rifle Work?

A PCP big bore air rifle works by releasing a measured burst of compressed air from a regulated or unregulated valve behind the projectile when the shooter pulls the trigger. The air reservoir stores compressed air at 3,000 to 4,500 psi (207 to 310 bar), and the valve meters the air release to control velocity and shot count. Regulated PCP air rifles maintain consistent velocity across a fill cycle, while unregulated models lose velocity as reservoir pressure drops.

Umarex Hammer .50 Caliber PCP Hunting Rifle

The Umarex Hammer is a .50 caliber PCP big bore hunting rifle that produces up to 705 foot-pounds of energy (956 J) and fires 3 shots from an internal straight-line magazine. Umarex USA manufactures the Hammer in Fort Smith, Arkansas, and the rifle uses a 4,500 psi (310 bar) carbon fiber air tank with a built-in regulator.

Umarex Hammer Specifications

The Umarex Hammer measures 43.75 inches (1,111 mm) in overall length, weighs 8.5 pounds (3.86 kg), and has a 29.5 inch (749 mm) barrel. The 24.3 cubic inch (398 cc) carbon fiber tank fills to 4,500 psi (310 bar) and delivers 3 full-power shots per fill. The 2-stage trigger breaks cleanly, and the rifle accepts standard Picatinny scope mounts.

Umarex Hammer Ammunition

Umarex sells 3 factory ammunition options under the UX SLA (Solid Lead Ammo) line for the Hammer:

• UX SLA .50 cal 350 grain (22.7 g) flat head lead slug, 20 count per tin
• UX SLA .50 cal 320 grain (20.7 g) lead slug, 20 count per tin
• UX SLA .50 cal 550 grain (35.6 g) lead slug, 20 count per tin

The 550 grain slug maximizes energy transfer at close range, while the 320 grain slug increases velocity and extends the effective distance.

Umarex ReadyAir Compressor

The Umarex ReadyAir is an electric airgun compressor that fills the Hammer's 4,500 psi (310 bar) carbon fiber tank without a hand pump or scuba tank. The ReadyAir compressor plugs into a standard 110-volt outlet and fills the Hammer tank from empty in approximately 20 to 25 minutes.

Umarex Hammer Magazine

The Umarex Hammer uses a straight-line internal magazine that holds 3 rounds of .50 caliber ammunition. The magazine indexes with each bolt cycle, and the shooter loads 3 slugs through the breech in sequence. Each bolt stroke advances the next round into the chamber.

AirForce Texan .50 Caliber PCP Air Rifle

The AirForce Texan is a single-shot .50 caliber PCP big bore air rifle that generates over 650 foot-pounds of energy (882 J) from a 34 inch (864 mm) Lothar Walther barrel. AirForce Airguns manufactures the Texan in Fort Worth, Texas, and the rifle is available in .257, .308, .357, .457, and .510 caliber configurations.

Texan Specifications and Features

The AirForce Texan measures 48 inches (1,219 mm) in overall length, weighs 7.65 pounds (3.47 kg), and fills to 3,000 psi (207 bar) in a 490 cc air tank. The Texan features adjustable power output, a 2-stage adjustable trigger, a side-lever cocking mechanism, and a manual safety. The Lothar Walther barrel provides match-grade accuracy, and the rifle accepts both open sights and optical scopes.

Texan Caliber Options

AirForce offers the Texan in 5 calibers, each using a Lothar Walther barrel:

• .510 caliber: over 1,000 feet per second (305 m/s) and 800+ foot-pounds of energy (1,085+ J)
• .457 caliber: over 1,000 feet per second (305 m/s) and 600+ foot-pounds (813+ J)
• .357 caliber: over 1,100 feet per second (335 m/s) and 300+ foot-pounds (407+ J)
• .308 caliber: over 1,000 feet per second (305 m/s) and approaching 300 foot-pounds (407 J)
• .257 caliber: up to 190 foot-pounds (258 J) for varmint and predator hunting

Seneca Dragon Claw II .50 Caliber

The Seneca Dragon Claw II is a dual-tank .50 caliber PCP air rifle that fires single shots through a side-lever action. The dual air tanks increase total air volume and shot count per fill compared to single-tank designs. The Dragon Claw II is available in standard, tactical, and combo configurations from Airgun Depot, with prices starting around $480 to $920 depending on the package.

Dragon Claw II Variants

Seneca sells 3 Dragon Claw II configurations:

• Seneca Dragon Claw II Dual Tank, .50 cal: standard configuration
• Seneca Dragon Claw II Tactical .50 cal: tactical stock and rail setup
• Seneca Dragon Claw II Combo: bundled with scope and accessories

Other .50 Caliber Big Bore Air Rifles

The .50 caliber big bore air rifle market includes 5 additional models beyond the Umarex Hammer, AirForce Texan, and Seneca Dragon Claw II. The Benjamin Bulldog Magnum Series fires .257, .357, and .457 caliber projectiles in a bullpup configuration starting at $999. The Hatsan Piledriver fires .45 and .50 caliber slugs, and the Seneca Wing Shot MKII is a .50 caliber shotgun-style airgun priced around $580 to $800. The Seneca Double Shot is a .50 caliber side-by-side double-barrel airgun priced at $920, and the Seneca Big Bore Light Hunter II covers .45 caliber.

50 Cal Air Rifle Ballistics

A 50 cal air rifle produces 200 to 800+ foot-pounds of energy (271 to 1,085+ J) depending on the rifle model, air pressure, and projectile weight. The AirForce Texan .510 generates over 800 foot-pounds (1,085 J), and the Umarex Hammer produces up to 705 foot-pounds (956 J) with 550 grain slugs.

How Far Will a 50 Cal Air Rifle Shoot?

A 50 cal air rifle has an effective hunting range of 50 to 150 yards (46 to 137 m) and a maximum projectile travel distance of 400+ yards (366+ m). Effective range depends on the rifle's power, projectile weight, and the shooter's accuracy. The AirForce Texan holds sub-3-inch groups at 100 yards (91 m) with tuned slugs, and the Umarex Hammer maintains hunting accuracy to 75 to 100 yards (69 to 91 m).

How Loud Is a 50 Cal Air Rifle?

A 50 cal air rifle produces a noise level rated medium-high to high on the airgun loudness scale, comparable to a .22 Long Rifle (LR) rimfire at 140 to 145 decibels (dB). The large air volume released per shot creates more muzzle blast than small-bore airguns. Shooting ear protection rated at a Noise Reduction Rating (NRR) of 25 dB or higher is standard practice.

Can a 50 Cal Air Rifle Kill a Deer?

Yes, a 50 cal air rifle produces enough energy to kill a deer at ranges under 100 yards (91 m), if the state permits airgun deer hunting. The Umarex Hammer generates 705 foot-pounds (956 J), and the AirForce Texan .510 generates over 800 foot-pounds (1,085 J), both of which exceed the 100 to 150 foot-pound minimum recommended for whitetail deer. Shot placement through the lungs or heart is required for a clean kill.

Which States Allow Air Rifle Deer Hunting?

More than 30 states in the United States allow airgun hunting for deer, with regulations that vary by caliber, energy, and season. States including Texas, Michigan, Virginia, and Missouri permit big bore airgun deer hunting under specific airgun seasons or general hunting regulations. Check the state fish and wildlife agency for current caliber and energy requirements before hunting.

Is a 50 Cal Air Rifle Considered a Firearm?

No, a 50 cal air rifle is not classified as a firearm under United States federal law, because the rifle uses compressed air instead of an explosive propellant. The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) does not regulate air rifles as firearms. State and local laws vary, and some jurisdictions restrict airgun use, discharge, or caliber within city limits.

50 Cal Air Rifle Price and Accessories

A 50 cal air rifle costs $480 to $1,950 depending on the model and configuration. The Seneca Dragon Claw II starts around $480, the AirForce Texan retails at $1,095, and combo packages with scopes and compressors run up to $1,950. Shooters who also use small-bore airguns can browse TactaBlue's pellet gun ammo and accessories for pellets, BBs, and targets, and those who run CO2-powered handguns can compare CO2 pistol power sources for 12-gram and 88-gram cartridges.

What Accessories Does a 50 Cal Air Rifle Need?

A 50 cal air rifle needs 6 accessories for field use: an air source (compressor, hand pump, or carbon fiber tank), a scope, a bipod, projectiles, ear protection, and a gun case. The Umarex ReadyAir compressor fills the Hammer at home, and a Hawke or UTG scope mounted on a Picatinny rail provides magnified targeting. A bipod stabilizes the 7.5 to 8.5 pound (3.4 to 3.86 kg) rifle for prone and bench shooting.