Fn 10700032 Gunr Ss201 5.7x28 40gr Fmj 50/10

The FN 5.7x28mm 40gr FMJ ammunition is purpose-built for shooters who run 5.7-chambered firearms—whether that's the iconic FN Five-Seven pistol, PS90 bullpup, or other modern sporting rifles in this caliber. Developed by FN Herstal, the originators of 5.7x28mm, these rounds combine the caliber's signature low recoil with genuine ballistic performance, making them equally at home on the range, in competition, or for defensive training. Each box contains 50 rounds of full metal jacket ammunition loaded to deliver consistent velocity and reliable feeding across all 5.7x28mm platforms.

What sets FN's factory ammunition apart is attention to the fundamentals: a 40-grain FMJ projectile seated in a brass case with a boxer primer, assembled to tolerances that cycle reliably without the feeding hiccups that plague lower-grade loads. The result is ammunition you can train hard and long with, shot after shot, without worrying about malfunctions or inconsistency. Felt recoil stays mild—one of the 5.7's defining strengths—so follow-up shots are fast and accurate whether you're working precision at distance or speed on steel at close range.

FN ammunition is the smart choice if you've invested in 5.7x28mm firearms. You're getting rounds engineered by the people who designed the cartridge itself, with the quality control and consistency that factory-fresh ammunition should deliver. Whether you're a competition shooter, a duty-focused trainer, or simply someone who appreciates a low-recoil, high-control shooting platform, these 50 rounds will give you the reliability and performance you expect from the FN name.

Key Features

• 40-grain full metal jacket projectile for reliable feeding and consistent performance
• Low recoil for extended training sessions and shooter control
• Brass case with boxer primer for reload capability
• Factory-loaded by FN Herstal, originators of the 5.7x28mm caliber
• Reliable cycling across all 5.7x28mm handguns and rifles
• 50 rounds per box

Specifications

Frequently Asked Questions

What firearms will this ammunition work in?

FN 5.7x28mm ammunition cycles reliably in all firearms chambered for 5.7x28mm, including the FN Five-Seven pistol, PS90 bullpup, and other modern sporting rifles in this caliber.

What's the muzzle velocity and energy I can expect?

Velocity and energy vary by platform. From a Five-Seven pistol, you'll see approximately 1,700 fps and 257 ft-lbs of energy. From a PS90 bullpup, these rounds clock in around 2,040 fps and 370 ft-lbs, thanks to the longer barrel.

Can these rounds be reloaded?

Yes. The ammunition uses a brass case with a boxer primer, which allows for reloading if you have the dies and equipment.

Is this the same as the SS197SR load?

These rounds deliver comparable felt recoil, velocity, and accuracy to the SS197SR, so shooters familiar with that load will find them very similar in performance.