Bullet Migration in 9mm Revolvers

By John Farnam

By John Farnam

Ft Collins, CO –-(Ammoland.com)- “Bullet-jump” with light-weight revolvers, particularly those chambered for 9mm:

Last weekend, during a Defensive Handgun Course, a student brought a Ruger five-shot revolver, chambered in 9mm.

During an exercise, shooting factory 115gr hardball from a well-known and reputable manufacturer, a bullet jumped forward far enough to protrude from the face of the cylinder and thus prevent the cylinder from rotating normally. In fact, the bullet jumped forward far enough to physically separate from the case. This not only precluded the revolver from continuing to fire, but it also made it impossible to swing-out the cylinder, so the revolver could now not be reloaded!

Tilting the revolver upward allowed the errant bullet to fall back far enough so that we could swing-out the cylinder. After thus fixing the problem, discarding the entire offending cartridge, and then reloading, the same thing happened a second time a few minutes later!

To be fair, this student fired a number of rounds normally before …Read the Rest

Source:: AmmoLand