Asuka, I'll re-enter this thread to do my best to answer your question. The way it's been explained to me is that magnum cartridges don't feed well into Semi-Auto's (DE) because they were created with revolvers in mind and the overall length and shape of the magnum cartridge creates a bad angle through the feed-ramp and into the chamber. This bad angle creates a greater probabilty that a round will get stuck on the way into the chamber which creates more malfunctions (jams). This is why people say the DE is unreliable. It seems to be more a problem with attempting to fire revolver rounds through a semi-auto than a design/engineering type problem. That is how I understand it.
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Pride is the recognition of the fact that you are your own highest value and, like all of man’s values, it has to be earned.
It is not advisable, James, to venture unsolicited opinions. You should spare yourself the embarrassing discovery of their exact value to your listener.
Ayn Rand, Atlas Shrugged
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