How re-chambering the same round can blow up your gun (and what to do instead)

In this no-BS technical breakdown, Tim Sundles of Buffalo Bore explains a critical, but often overlooked, safety issue: bullet setback caused by repeated chambering of the same round. Tim demonstrates how cycling a cartridge over and over damages its structural integrity, increases chamber pressure, and can lead to catastrophic firearm failure.

He also explains why hand-cycling a semi-auto pistol is not a valid test of ammo reliability, and why your slide technique matters more than you think. With real-world insights from decades in ammo development, Tim emphasizes the importance of understanding these “nuances” before they lead to serious consequences.