Originally Posted by robkarrob

First this "kaboom" issue is very isolated. For the thousands of Shields sold, there has been only a few reports of exploding Shields. This seems to be an ammo issue, which could happen to anyone, if they should get an over powered round. The only other reason would be bullet setback. If you compare all your rounds for the amount the bullet extends out of the casing, the bullets should be uniform. If you find one that extends less, then do not use that round. It could cause much higher internal pressure, when fired.

This could occur from factory loads, but is more likely to be an issue with re-chambered rounds. If you empty your gun, and re-chamber that emptied round, by reloading it in the magazine, and then racking the slide to re-chamber the round, this may cause setback. The bullet hitting the feed ramp, over and over, can cause the bullet to be pushed back further into the casing. This could cause higher internal firing pressures, which could lead to a kaboom. I re-chamber my rounds, by locking the slide open, and then dropping the cartridge into the chamber. This does not cause setback, as there in no pressure to the tip of the bullet, to cause setback.


Bob