This video showcases an experimental 17-5.56 KAK wildcat cartridge, achieving a record-breaking 5326 fps with a 12.5-grain solid brass projectile. The testing demonstrates impressive steel penetration and significant temporary cavity effects in ballistic gel, outperforming established cartridges like the .17 HMR and even .30-06 AP rounds in specific scenarios. The content highlights advanced reloading techniques and extreme ballistic performance.
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