Gel Test: 7.5FK and 5.7x28mm
Rob PincusDescription
Back when Rob Pincus started talking about the 7.5FK round, some people confused it with the 5.7mm round from FN. The two rounds are very different – the 5.7mm is a specialty round designed for military and law enforcement use at close range. It’s a small, fast projectile designed to defeat body armor out of a pistol or PDW.
The 7.5FK round has established itself as one of the only options for getting rifle-like terminal performance at engagement distances beyond 50 meters. It was designed to emulate an AK’s terminal ballistics at 100 meters from a six-inch barrel.
Rob does a gel test comparison of the two rounds. Apples to oranges? The results are nevertheless interesting, as well as instructive.
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