Videos tagged with Case Neck Tension

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.

This video details the reloading process for the .223 Remington cartridge using 65gr Cutting Edge MTH bullets, IMR 8208 XBR, and Hodgdon Varget powders. The instructor emphasizes the unique 'seal tight band' design of the bullet, its impact on seating depth, and the importance of proper case neck preparation to maintain tension. Accuracy testing reveals significant variability, with specific loads showing promise for future development and ballistic gel testing.