This video provides an in-depth comparison between .40 S&W and .357 Sig cartridges, specifically focusing on Civil Liberty Defense ammunition. The presenter highlights the physical differences, such as the bottleneck design of the .357 Sig, and showcases various firearms that could chamber these calibers.
This video explains the 'hourglass effect' in 9x21mm cartridges, a cosmetic issue caused by over-tightening the case neck during reloading. While primarily aesthetic, excessive tightening can lead to insufficient radial neck tension, potentially causing bullet setback and chambering failures. The speaker, exhibiting high authority, advises against aggressively eliminating this effect to maintain proper cartridge function.
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