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<< 12 gauge is easier to handle than a 357. The 12 gauge transfers the recoil straight into your shoulder. The 357 goes from your hands, through your arms, to your shoulder. >>
It is also a liability in a CQB situation, too much length for someone to grab onto and fling you around the room with. It also affords plenty of leverage, with which someone can easily disarm you (and break your fingers/wrist at the same time).
Sure, the goal is not to let them get that close. That is often not your choice in a home defense situation. >>
For the record, I wasnt arguing in favor of the 12 gauge over the 357 Magnum. I was, however, refuting the opinion that a 357 is easier to handle than a 12 gauge.