Hi Big Fre,
I'm still trying to understand exactly what happened here.
You say "the full metal jacket broke open and got stuck in the barrel/chambre."
This sounds like a defective round rather than ammo which is not suited to the gun.
But I'm certainly not encouraging use of the Geco 139gr ammo at all!!
You are VERY fortunate that the 4th bullet did not get stuck farther down the barrel! In that case, it is likely that you would have fired the next round, (since it would have chambered properly), and then you would have exploded your barrel and likely the slide as well. I have heard these referred to as "Squib loads" resulting from too lttle, or even no charge in the casing at all, but only the primer. Did you hear a faint "pop" rather than a proper "BANG" when you fired that last 4th round?
Scary............. Good thing that you (and your gun) are all right.
There are good YouTube educational videos about this- here's some links:
https://www.youtube.com/watch?v=jC7H_8n8HbU&t=317s
https://www.youtube.com/watch?v=P1MHKRBPPAY
Here's what can happen:
https://www.youtube.com/watch?v=PU4-v433Of0
https://www.youtube.com/watch?v=exGUPC2aP4M