This YouTube video conducts a ballistic gel test and review of FNH's lead-free defensive ammunition in the 5.7x28 caliber. The test uses both a PSA Rock 5.7 pistol and a Kel-Tec P50 (implied by PR57, a common typo for P50 in forum discussions) to evaluate the ammo's performance, including penetration and expansion through heavy clothing. The video highlights the effectiveness of this specialized ammunition for self-defense scenarios.
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