I've always light loaded 357 Magnum cases. The bullet jump thing is important in rifles, but revolvers already have a lot of bullet jump in their inherent design. The crud ring in the chambers is the biggest advantage to using Magnum length cases.

Simplicity of die adjustment might be an advantage to just using Magnum brass. Having to stock only Magnum brass might also be an advantage. My habit has been to use Magnum brass just a few times for full power loads, then retire them to reduced power load use.

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VCDL, GOA, NRA