The SSR was supposedly designed for IDPA: no moonclips (in standard revolver), only six rounds, and 4" barrel or shorter. It's a medium size L frame.

The 627 Pro is made on the larger N frame, and should work fine for ICORE competition ( but the 5" eight shooters might be more popular??)

Both 4" guns have changeable front sights? And the two guns should handle differently. Grip size is different. Shoot them enough, and you should notice a difference between trigger action/ cylinder size & rotation.
Both guns are real good, depending on what you want.
What else guys?

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July 4, 1776 not Jan 30, 1909