4 ms·
Awesome explanation of the physics of why the gun discharged here (http://www.ajronline.org/cgi/content/full/178/5/1092 http://www.ajronline.org/cgi/content/ful
by gridspy 16y ago
Awesome explanation of the physics of why the gun discharged here (http://www.ajronline.org/cgi/content/full/178/5/1092 http://www.ajronline.org/cgi/content/full/178/5/1092)
Short summary:
- A round was chambered in a safety locked gun.
- The "Sear" at the top of the gun that normally moves when the gun is fired was locked, and the empty cartridge was still in the gun, confirming that the gun was physically locked
- The pin was pulled into the unlocked firing position by the magnetic field
- The impact of the gun when it hit the CT caused the firing pin to move against the spring and hit the back of the loaded bullet, causing it to fire. There is white paint on the front of the gun where the gun hit the CT confirming the impact point
- Zak 16y agoGood summary, but it doesn't quite make it clear what safety device failed. The firing pin block exists to ensure that an impact in-line with the firing pin cannot move it when the trigger is not depressed. It too could be moved by inertia, but its movement is perpendicular to the firing pin itself, so an impact cannot move both at once. In this case, the magnetic field moved the firing pin block, while inertia pushed the firing pin forward relative to the rest of the gun. This is the only time I've ever heard of a firing pin block failure resulting in an accidental discharge.
- epochwolf 16y ago> This is the only time I've ever heard of a firing pin block failure resulting in an accidental discharge. The is the only time I heard of a gun encountering an extremely powerful magnetic field.