I get splits like that from time to time. For me that's one of the indicators that a particular piece of brass has hit the end of its useful life. I don't wear shooting gloves and have never been injured by this type of failure. I just toss 'em. Never thought once about taking a picture of the thing. I shoot a whole lot more .38 special than .357 so I see it more with the .38's.
Proud member of the NRA and Texas State Rifle Association. Registered and active voter.