The best ammo for FN PS90 depends on your shooting goals. Whether you use your PS90 for range shooting, training, competition, or collecting one of the most unique firearm platforms ever produced, choosing the right 5.7x28mm ammunition helps you get the best performance from this compact bullpup carbine.
The FN PS90 is the civilian semi-automatic version of the FN P90 personal defense weapon. Designed around the unique 5.7x28mm cartridge, the platform delivers low recoil, high capacity, and fast follow-up shots. FN developed the 5.7x28mm cartridge specifically for the P90 platform and later expanded it to other firearms chambered in this caliber.
Because the PS90 uses a specialized cartridge, ammunition selection matters more than with common calibers like 9mm or 5.56 NATO. For most civilian PS90 owners, quality factory-loaded 5.7x28mm ammunition provides the best combination of reliability, accuracy, and consistent performance.
What Ammo Does an FN PS90 Use?
The FN PS90 uses:
5.7x28mm ammunition
The PS90 was designed specifically around the 5.7x28mm cartridge, a lightweight, high-velocity round developed by FN for compact personal defense weapon platforms.
| Specification | Details |
|---|---|
| Cartridge | 5.7x28mm |
| Bullet Weight Range | Commonly 27–40 grains |
| Firearm Type | Semi-automatic bullpup carbine |
| Platform Origin | FN P90 / PS90 |
| Common Uses | Range shooting, training, collecting |
Always verify your firearm manual and ammunition specifications before use.
Best 5.7x28mm Ammo for FN PS90
The best ammunition for a PS90 should provide:
- Reliable feeding
- Consistent velocity
- Good accuracy
- Dependable cycling
- Availability for regular training
Unlike common rifle calibers, 5.7x28mm ammunition has fewer manufacturers and fewer load options. This makes choosing reliable factory ammunition especially important for PS90 owners.
Best Overall Ammo: 40 Grain 5.7x28mm
For many FN PS90 shooters, 40 grain 5.7x28mm ammunition offers an excellent balance of reliability, accuracy, and availability.
Benefits:
- Consistent performance
- Good accuracy
- Reliable function
- Effective for general range use
The heavier projectile weight makes it a popular choice for shooters who want predictable performance during training.
Ideal uses:
- Range sessions
- Target shooting
- General practice
- Familiarization with the PS90 platform
Best Range Ammo for FN PS90
The PS90 is known for being extremely enjoyable to shoot because of its low recoil and ergonomic bullpup design.
Range ammunition should help shooters improve:
- Accuracy
- Trigger control
- Target transitions
- Shooting confidence
Popular range choices include:
- 5.7x28mm FMJ ammunition
- 40 grain loads
- Factory-loaded training ammunition
Because PS90 owners often shoot several magazines per range trip, ammunition cost becomes an important consideration.
Bulk 5.7×28 Ammo for FN PS90
The PS90’s high-capacity magazine and fast shooting characteristics make bulk ammunition a practical choice.
Buying bulk 5.7×28 ammo helps:
- Reduce cost per round
- Increase training opportunities
- Maintain ammunition availability
- Avoid frequent small purchases
Popular quantities include:
- 250 rounds
- 500 rounds
- 1,000 rounds
For PS90 owners who regularly train, purchasing larger quantities can make range sessions more affordable.
5.7x28mm Ammo Types for FN PS90
Different 5.7x28mm loads are designed for different purposes.
FMJ 5.7x28mm Ammo
Best for:
- Range shooting
- Training
- High-volume practice
Advantages:
- Affordable compared with specialized loads
- Reliable feeding
- Consistent accuracy
Specialty 5.7x28mm Loads
Some 5.7x28mm ammunition is designed for specific performance goals.
These loads may focus on:
- Different projectile designs
- Specific applications
- Specialized performance characteristics
Always choose ammunition appropriate for your firearm and follow manufacturer recommendations.
Why 5.7x28mm Ammo Is Different From Other Calibers
The 5.7x28mm cartridge was designed as a lightweight, high-velocity cartridge for compact firearms like the FN P90 platform.
Compared with traditional pistol cartridges, 5.7x28mm offers:
- Lower recoil
- High magazine capacity potential
- Flat trajectory characteristics
- Lightweight ammunition
These features helped make the PS90 popular among shooters looking for a unique, fast-handling firearm.
How Much Ammo Should You Buy for an FN PS90?
Your shooting habits determine the right ammunition supply.
Occasional Shooter
250 rounds
Good for occasional range visits.
Regular Shooter
500–1,000 rounds
A practical supply for frequent training.
High-Volume Shooter
2,000+ rounds
Useful for:
- Frequent range sessions
- Competition practice
- Multiple 5.7x28mm firearms
FN PS90 Ammo Buying Tips
Confirm Your Caliber
The FN PS90 uses:
5.7x28mm
Do not substitute ammunition from other small-caliber cartridges.
Test Before Buying Bulk
Before purchasing large quantities:
- Test different factory loads
- Confirm reliable function
- Compare accuracy
- Select your preferred ammunition
Consider Cost Per Round
Because 5.7x28mm ammunition is less common than 9mm or .223 Remington, comparing:
Total price ÷ number of rounds = cost per round
helps determine the best value.
5.7x28mm vs 9mm for PCC Platforms
| Caliber | Best Use |
|---|---|
| 5.7x28mm | FN PS90 and specialized platforms |
| 9mm | Common PCC and handgun platforms |
The biggest advantage of 9mm is availability, while the PS90’s 5.7x28mm cartridge provides the unique performance characteristics the platform was designed around.
FN PS90 vs Other Compact Platforms
| Firearm | Ammo |
|---|---|
| FN PS90 | 5.7x28mm |
| FN Five-seveN | 5.7x28mm |
| HK SP5 | 9mm Luger |
| CZ Scorpion | 9mm Luger |
| SIG MPX | 9mm Luger |
The PS90 stands apart because it was designed around the dedicated 5.7x28mm cartridge system.
Frequently Asked Questions About FN PS90 Ammo
What ammo does an FN PS90 use?
The FN PS90 uses 5.7x28mm ammunition.
Is 5.7x28mm the same as 5.7 ammo?
Yes. 5.7x28mm is the full cartridge designation commonly shortened to 5.7 ammo.
What is the best ammo for FN PS90 range shooting?
Most shooters choose reliable factory-loaded 5.7x28mm FMJ ammunition for affordable training.
Can you buy bulk 5.7×28 ammo?
Yes. Bulk 5.7x28mm ammunition is available and can help reduce shooting costs for regular PS90 users.
Is FN PS90 ammo expensive?
5.7x28mm ammunition is typically more expensive than common calibers like 9mm because it has lower overall production volume.
Shop Bulk 5.7×28 Ammo for FN PS90
The FN PS90 remains one of the most recognizable compact firearm platforms because of its unique design, low recoil, and specialized 5.7x28mm cartridge.
Choosing dependable 5.7x28mm ammunition helps PS90 owners maximize range time while maintaining reliable performance.
Explore Bulk Ammo To Go’s selection of bulk 5.7×28 ammo for FN PS90, FN P90-style platforms, and other firearms chambered in 5.7x28mm.