This video from Buckeye Ballistics provides a comprehensive gel test of Federal HST 124gr +P 9mm ammunition across various barrel lengths (3.3" to 10.5"). The expert analysis highlights how barrel length significantly impacts velocity and bullet expansion, with longer barrels generally yielding higher velocities and more dramatic "flowering" of the projectile. The test uses calibrated ballistic gelatin to simulate tissue and offers valuable insights for selecting ammunition based on intended firearm platform.
This ARFCOM News review tests Speer 147gr Gold Dot 9mm ammunition from a 7.72-inch CZ Scorpion. The test aimed to determine if the load remained subsonic and assess its terminal performance. While the average velocity of 1,160 FPS was slightly supersonic from the Scorpion's barrel, the ammunition demonstrated excellent terminal ballistics, including perfect weight retention and consistent expansion, making it suitable for defense.
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