5.7

Day Two of the Fest also saw us shooting into clear ballistic gel. For the self-defense 5.7 rounds, 12- to 14-inches of penetration was about the average.

The Tempo Barrel System uses a locked-breech system that makes it so that the barrel doesn’t cam open until the bullet passes the gas port.

Sturm, Ruger & Company, Inc. (NYSE: RGR) is excited to introduce the lightweight, compact Ruger® LC Carbine™ chambered in 5.7x28mm.

The KelTec P50 had zero malfunctions in 250 rounds in our test, shot consistent 1 inch groups from the bench at 25 yards, and rang steel at 100 yards with a red dot. Those rounds were all FN 40 gr V-Max because of ammo shortages at the time, so other loads were not tested. C. [...]

When I first received the FN Five-seveN (FN 57 from here out), I immediately took notice of how lightweight it is. Coming in at only 21 ounces without the mag, it’s the kind of deceiving that pulls a remark out of anyone that picks one up for the first time. Coupling this fact with my knowledge of the FN 57 being used by military and police across the world, the latter makes a lot more sense. This is a powerful package that carries 20 rounds of 5.7×28 and puts minimal strain on the hip of the person that has to carry it.

The newest version of CMMG’s 5.7 uses a standard mil-spec AR lower receiver. Rather than shrinking dimensions and using a pistol sized magazine, CMMG engineered a larger magazine roughly the same dimensions as a standard capacity 30-round AR magazine.