The best ammo for FN PS90 owners starts with understanding the unique cartridge that makes this firearm different from traditional pistol-caliber platforms. The FN PS90 uses 5.7x28mm ammunition, a lightweight, high-velocity cartridge designed for the FN P90 platform.
Unlike common PCC cartridges such as 9mm, the 5.7x28mm was developed specifically around a compact firearm design that delivers low recoil, flat shooting characteristics, and high magazine capacity.
For PS90 owners, choosing the right ammunition matters because 5.7×28 is a specialized cartridge with fewer options than more common calibers. Most shooters choose quality 40 grain 5.7×28 FMJ ammunition for range training and general shooting.
What Ammo Does the FN PS90 Use?
The FN PS90 uses:
5.7x28mm ammunition
The same cartridge is used by:
- FN PS90
- FN P90
- FN Five-seveN pistol
- Other 5.7x28mm firearms
| Specification | Details |
|---|---|
| Cartridge | 5.7x28mm |
| Common Bullet Weight | 40 grain |
| Platform | Personal defense weapon / carbine |
| Best Use | Range shooting, training, recreational use |
The FN PS90’s design was built around the 5.7×28 cartridge, giving shooters a lightweight firearm with very manageable recoil.
Best 5.7×28 Ammo for FN PS90
The best ammunition depends on your intended use. Most civilian PS90 owners use their firearms for:
- Range shooting
- Recreational shooting
- Training
- Collecting
For these applications, reliable FMJ ammunition is usually the preferred option.
Best Overall: 40 Grain 5.7×28 FMJ
For most FN PS90 owners, 40 grain FMJ 5.7×28 ammunition is the best all-around choice.
Why shooters choose 40 grain FMJ:
- Designed for general range use
- Consistent performance
- Widely available 5.7×28 load
- Good balance of velocity and cost
40 grain FMJ is ideal for:
- Target shooting
- Practice sessions
- High-volume range use
Because PS90 magazines hold a large number of rounds, ammunition cost becomes an important factor for regular shooters.
Best Range Ammo for FN PS90
The PS90 is an enjoyable firearm to shoot because of its low recoil and fast handling. However, the platform can consume ammunition quickly during longer range sessions.
For regular practice, look for:
- Reliable feeding
- Consistent ignition
- Quality manufacturing
- Competitive cost per round
Popular 5.7×28 range ammunition options include:
- FN factory 5.7×28 ammunition
- Federal American Eagle 5.7×28
- Fiocchi 5.7×28 FMJ
Always test ammunition in your specific firearm before purchasing larger quantities.
Why Buy Bulk 5.7×28 Ammo for FN PS90?
The FN PS90 is different from many firearms because its high-capacity magazines and fast shooting characteristics encourage longer sessions.
Buying bulk 5.7×28 ammo can help owners:
- Reduce average cost per round
- Spend more time at the range
- Maintain a consistent ammunition supply
- Avoid frequent smaller purchases
Since 5.7×28 ammunition is less common than 9mm or .223, keeping a supply available can be especially useful for dedicated PS90 owners.
How Much Ammo Should You Buy for an FN PS90?
The right amount depends on how often you shoot.
Occasional Shooter
250–500 rounds
A good starting supply for casual range use.
Regular Shooter
1,000 rounds
A practical quantity for regular training and range sessions.
Dedicated PS90 Owner
2,000+ rounds
Ideal for collectors, frequent shooters, and enthusiasts who want a reliable supply.
5.7×28 Ammo Buying Tips for FN PS90 Owners
Confirm You Are Buying the Correct Cartridge
The FN PS90 requires 5.7x28mm ammunition.
Do not confuse it with:
- 9mm Luger
- .22 LR
- .223 Remington
Although the cartridge is small, it is a unique centerfire round designed specifically for the PS90/P90 platform.
Compare Cost Per Round
Because 5.7×28 ammo typically costs more than common pistol calibers, comparing value is important.
Calculate:
Total price ÷ number of rounds = cost per round
Bulk purchases often provide better value than buying individual boxes.
Test Different Loads
Before purchasing a large quantity:
- Test different manufacturers
- Find ammunition your firearm runs reliably
- Buy your preferred load in bulk
5.7×28 vs 9mm: Which Is Better for PCC Shooting?
The FN PS90 and platforms like the HK SP5 or CZ Scorpion use different approaches.
| Cartridge | Platform | Characteristics |
|---|---|---|
| 5.7×28 | FN PS90 | Lightweight, high velocity, low recoil |
| 9mm | HK SP5, CZ Scorpion | Affordable, widely available |
The biggest advantage of 9mm is cost and availability. The advantage of 5.7×28 is the unique performance and shooting experience it provides.
Why FN PS90 Owners Choose 5.7×28
The FN PS90 remains popular because it offers something different from traditional pistol-caliber carbines.
Advantages include:
- Very low recoil
- Compact design
- High magazine capacity
- Fast follow-up shots
- Unique shooting experience
The firearm’s performance depends on using ammunition designed specifically for the 5.7×28 platform.
Frequently Asked Questions About FN PS90 Ammo
What ammo does an FN PS90 use?
The FN PS90 uses 5.7x28mm ammunition.
What is the best grain ammo for FN PS90?
Most shooters choose 40 grain FMJ ammunition for general range shooting.
Can FN PS90 shoot any 5.7×28 ammo?
Yes, but ammunition should always match manufacturer specifications and be tested in your firearm.
Is 5.7×28 ammo expensive?
Compared with common calibers like 9mm, 5.7×28 is usually more expensive because it is a specialized cartridge with lower production volume.
Is bulk 5.7×28 ammo worth buying?
For PS90 owners who shoot regularly, bulk purchases can help reduce cost per round and maintain ammunition availability.
Shop Bulk 5.7×28 Ammo for FN PS90
The FN PS90 is one of the most unique firearms available today, and its performance depends on choosing the right 5.7×28 ammunition. Whether you shoot occasionally or regularly train with your PS90, keeping a reliable supply of quality ammo helps you get the most from this platform.
Explore Bulk Ammo To Go’s selection of bulk 5.7×28 ammo for FN PS90, P90 platforms, and other 5.7×28 firearms.