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The 5.7x28 ammo, popularly known as 5.7 ammo, fn 5.7 ammo & and FN 5.7x28mm NATO that is manufactured by FN Herstal.
Belgian company FN Herstal released their FN 5.7x28mm cartridge in 1991, after NATO requested a replacement for the 9x19mm cartridge.
When it comes to the design ;fn 5.7 ammo is a small centerfire cartridge that comes with high-velocity, smokeless-powder, bottleneck & designed for pistols and personal defense weapons (PDW).
It is similar in length to the .22 WMR and .22 Hornet.
Specifications
- Case type : Rebated, bottleneck
- Bullet diameter : 5.70 mm (0.224 in)
- Land diameter : 5.53 mm (0.218 in)
- Neck diameter : 6.38 mm (0.251 in)
- Shoulder diameter : 7.95 mm (0.313 in)
- Base diameter : 7.95 mm (0.313 in)
- Rim diameter : 7.80 mm (0.307 in)
- Rim thickness : 1.14 mm (0.045 in)
- Case length : 28.90 mm (1.138 in)
- Overall length : 40.50 mm (1.594 in)
- Case capacity : 0.90 cm3 (13.9 gr H2O)
- Rifling twist : 228.6 mm (1 in 9 in)
- Primer type : Boxer Small Rifle
- Maximum pressure : 345.00 MPa (50,038 psi)
Has the 9mm Finally Been Replaced By 5.7?
The simple answer is “No”.
There are many reasons that the 9x19mm is the number one choice for over 100 years and will stay here for sure.
But, if there is any caliber that can replace the 9mm, it is the 5.7x28mm.
This caliber offers many of the same benefits that are provided by 9mm.
We have a detailed comparison guide here about 5.7 vs 9mm.
If you value low recoil, high capacity, and specialized capabilities like armor penetration, the 5.7mm will be good to go.