What makes a 50 cal air pistol so powerful?
The .50 caliber represents the pinnacle of air pistol engineering. Unlike smaller calibers, these pistols push projectiles measuring 12.7mm in diameter, delivering devastating energy on target. We’re talking about air pistols that can drop medium-sized game at distances up to 50 meters.
The power comes from three key factors:
- Large caliber projectiles carry significantly more mass
- High-pressure PCP systems generate substantial muzzle velocity
- Advanced valve systems release maximum air volume per shot
The Evanix Rex-P: Raw power in pistol form
The Evanix Rex-P stands as one of the most formidable .50 caliber air pistols available. This Korean-engineered beast combines compact dimensions with serious firepower.
What sets the Rex-P apart is its multi-shot capability. You get a 6-shot magazine that rotates automatically, giving you follow-up shots without breaking your stance. The bullpup design keeps the overall length manageable at just 610mm while maintaining a 310mm barrel for optimal velocity.
The pistol features an adjustable power wheel, letting you dial in your energy output based on your needs. Whether you’re practicing at the range or heading out for hunting, you control the power delivery.
| Advantages | Disadvantages |
|---|---|
| 6-shot magazine for quick follow-ups | Heavy weight requires strong grip |
| Adjustable power settings | Air consumption is significant at full power |
| Compact bullpup design | Reloading magazines takes practice |
| Excellent build quality | Price point reflects premium features |
| Shrouded barrel reduces noise | Limited aftermarket accessories |
Evanix Rex-P Bottle: Extended shooting sessions
Want more shots between fills? The Evanix Rex-P Bottle takes everything great about the standard Rex-P and adds a larger air reservoir. This version swaps the tube for a bottle configuration, dramatically increasing your shot count.
The bottle design gives you significantly more air capacity without adding excessive bulk. You’ll get roughly 50% more shots per fill compared to the tube version. For hunters who need to stay in the field longer or shooters who hate constant refilling, this makes a real difference.
The ergonomics remain solid, though the bottle does shift the balance point slightly. Most shooters adapt quickly and appreciate the extended shooting time.
| Advantages | Disadvantages |
|---|---|
| Higher shot count per fill | Slightly altered balance compared to tube version |
| Same proven Rex-P platform | Bottle replacement costs more than tubes |
| Easy bottle replacement in the field | May feel front-heavy for some shooters |
| More time shooting, less time filling | Requires specific bottle size for replacements |
| Maintains full power throughout more shots | Price premium over standard version |
Western Airguns Mordax: The semi-auto game changer
Now we’re talking serious innovation. The Western Airguns Mordax brings semi-automatic and full-automatic capability to the big bore air pistol world. This isn’t your grandfather’s air pistol.
The Mordax operates on a completely different principle than traditional PCP pistols. It features a genuine semi-auto action with blowback operation, giving you rapid-fire capability that’s unmatched in the air pistol category. Flip the selector, and you can even go full-auto for maximum firepower.
What really impresses is the magazine capacity. You get a substantial magazine that feeds reliably, shot after shot. The pistol’s modern design includes multiple accessory rails for mounting optics, lights, and lasers. This is a tactical air pistol designed for serious shooters.
The Mordax excels in scenarios where you need multiple quick shots. Pest control becomes significantly more effective when you can deliver rapid follow-ups. The pistol’s ergonomics follow modern firearm designs, so if you’re familiar with tactical pistols, you’ll feel right at home.
| Advantages | Disadvantages |
|---|---|
| Semi-auto and full-auto capability | Air consumption extremely high in full-auto |
| High magazine capacity | Requires more frequent maintenance |
| Multiple accessory rails | Heavier than bolt-action alternatives |
| Realistic blowback action | More complex mechanism means higher cost |
| Excellent for rapid pest control | Shot count per fill is limited |
| Modern tactical design | Louder operation due to blowback system |
Understanding 50 cal ammunition options
Your pistol is only as good as the ammunition you feed it. The .50 caliber offers several projectile options, each suited for different applications.
Round balls remain the most common choice. They’re affordable, readily available, and deliver consistent performance. For hunting, you’ll want to look at hollow point or expanding projectiles that transfer maximum energy to the target.
Solid slugs offer better ballistic coefficients for longer range work. They maintain velocity better and resist wind drift more effectively than round balls. However, they require proper barrel twist rates to stabilize properly.
Projectile weights typically range from 11 to 20 grams. Heavier projectiles deliver more downrange energy but at reduced velocities. Lighter projectiles fly faster but shed energy more quickly.
Maintenance tips for maximum performance
Big bore PCP pistols demand proper maintenance to maintain their impressive performance. These aren’t toys, they’re precision instruments that need regular care.
First, keep your air reservoir clean and properly filled. Always use filtered, dry air to prevent moisture buildup inside your pistol. Moisture leads to rust and seal degradation, killing accuracy and reliability.
Regularly inspect your o-rings and seals. These components work hard with every shot, especially in high-power configurations. Replace them at the first sign of wear rather than waiting for failure.
Clean your barrel regularly, but don’t overdo it. A slightly leaded barrel often shoots better than a spotless one. Every 100-150 shots, run a proper cleaning patch through to remove excessive buildup.
Check all mounting screws periodically. The recoil and vibration from .50 caliber shots can loosen fasteners over time. A quick check every few shooting sessions prevents accuracy-robbing movement.
Comparing the big three specifications
| Feature | Evanix Rex-P | Rex-P Bottle | Western Mordax |
|---|---|---|---|
| Caliber | .50 / 12.7mm | .50 / 12.7mm | .50 / 12.7mm |
| Action Type | Bolt-action repeater | Bolt-action repeater | Semi/Full-auto |
| Magazine Capacity | 6 rounds | 6 rounds | High capacity magazine |
| Power Adjustment | Yes | Yes | Fixed power |
| Best For | Balanced performance | Extended shooting | Rapid fire capability |
What you need to know before buying
Stepping into .50 caliber air pistols represents a significant investment. These aren’t entry-level airguns, and they demand respect and proper handling.
Consider your intended use carefully. If you’re hunting, the Rex-P models offer excellent accuracy and sufficient power for ethical shots on medium game. The adjustable power lets you tune performance for different scenarios.
For those wanting rapid-fire capability or tackling serious pest control duties, the Mordax stands alone. Nothing else in the air pistol world delivers its rate of fire combined with .50 caliber authority.
Budget for accessories beyond the pistol itself. You’ll need a quality hand pump or compressor, proper eye protection, and a supply of ammunition. Don’t forget a solid shooting rest or bipod, these pistols are heavy and benefit from stable support.
Think about your shooting environment too. These pistols are loud, even with shrouded barrels. Make sure you have appropriate space to shoot safely and without disturbing neighbors.
Purchasing advice: Which pistol fits your needs?
After extensive experience with all three platforms, here’s my straight recommendation based on what you actually need.
Choose the Evanix Rex-P if you want the most well-rounded package. It delivers serious power, good shot count, and proven reliability. The adjustable power feature makes it versatile enough for everything from practice to hunting. This is your best first big bore pistol.
Go with the Rex-P Bottle when you prioritize extended shooting sessions over absolute compactness. Hunters who trek long distances or shooters who hate constant refilling will appreciate the extra capacity. The slight balance change is a minor trade-off for significantly more trigger time.
Select the Western Airguns Mordax when you need rapid-fire capability above all else. This pistol excels in dynamic situations where quick follow-up shots matter. It’s the choice for serious pest controllers and shooters who want cutting-edge technology. Just understand that the added complexity requires more maintenance and the air consumption demands more frequent fills.
For most shooters entering the .50 caliber world, I recommend starting with the standard Rex-P. Master the fundamentals with this proven platform, then consider adding the Mordax later if you need its unique capabilities. The Rex-P gives you everything you need to discover whether big bore air pistols match your shooting style without overwhelming you with features you might not use.
Ready to experience the most powerful air pistol category available? Any of these three will deliver performance that’ll impress you every time you pull the trigger.
