The enclosed is something that may be of interest to shooters whose behaviour falls into the defined parameters:
Catastrophic Failure of Semiautomatic Handguns
>
> Date: February 23, 2007
> The following bulletin was received from the New Jersey State Police -
> Officer Safety Division
>
> Continuous reloading an chambering of the same round may cause
> catastrophic failure in semiautomatic handguns.
>
> The Security Force at the Los Alamos National Laboratory in Los Alamos,
> New Mexico, recently reported on the catastrophic failure of a
> semiautomatic handgun when it was fired. The internal explosion caused
> the frame to break while the slide and barrel separated from the weapon
> and traveled down range. No one was injured in the incident. An
> investigation revealed that security personnel were repeatedly charging
> the same round of ammunition into the chamber.
>
> Technical personnel at Glock Inc. advise that repeated chambering of the
> same round may cause the bullet to move deeper in the casing, further
> compacting the propellent. When a normal cartridge is fired, the
> firing
> pin his the primer, igniting the propellant. When the propellant
> burns, the gas pressure drives the bullet out of the case and down the
> barrel. However, if the propellant has been compact, the pressure may
> increase beyond the gun's specifications, causing the weapon to break
> apart. Sigarms Inc's personnel confirm that reloading the same round
> five or six times will cause the problems, noting that reloading the
> same round even once will void their warranty. Both manufacturers
> stress that the problem is not with the gun, but with chambering the
> same round repeatedly.
>
> The NJ Regional Operations Intelligence Center urges all law enforcement
> officers not to chamber the same round when loading their weapons.
>
> ***For example, when you clean your weapon, most of us drop the magazine
> and then pull the slide back thereby ejecting the round in the barrel.
> After cleaning the weapon many of us will return the "same" round to
> the
> barrel that we initially extracted. Each time the slide slams forward
> on that same round it seats it deeper into the cartridge. Apparently,
> by seating the round deeper into the cartridge, it creates greater
> pressure when the round is intentionally detonated by a firing pin
> strike and is causing weapon's to explode.
> ----------------------------------------------------------------------------
>
>
At least something to think about.