Let me add that I've always read and/or been told that dents like that are fine, much bigger ones may be a cause for concern, but that cases with creases need to go in the scrap bin
The case head failed and gas was released because the round was massively overpressure. There's no way that a simple case head failure and gas release could open up a receiver like that.It is obvious the case head failed and gas was released in this small ring mauser.
Thanks for the "attack" on my comment. I say "throw it out" and you go crazy. Well sir, I stick by "my" comment. The poster asked for an opinion and I gave one.Are you kidding? When in doubt....throw it out. Half the ammo I reload has dents worse than that from hitting the side of the receiver while being ejected. Apparently sav.250 is not a reloader.
cbrgator, that round is perfectly good. As Larry stated, if it will chamber, it will fire just fine. And that will iron out the slight dent so that it'll be fine to reload many times too.