I was getting in some trigger time yesterday when this happened. First time in 50+ years of shooting. The magazine blew partially out, debris, mostly unburnt powder blasted out the ejection port and it was LOUD. The projectile exited the barrel but didn't hit the paper. I think that anyone on my right would have wished they were elsewhere. Ammo was CCI SV
That looks like an issue documented in this thread https://appleseedinfo.org/smf/index.php?topic=69568.0 Here's a link to the IAAR which provides slightly more info including a picture https://appleseedinfo.org/smf/index.php?topic=69569.0.
Looks like the same thing. Lot number comparison would be interesting. My takeaway is "eyes and ears"!