I ask because I just had 3 stove pipes in my Glock 19 4th Gen. Started happening on my last round of every magazine I had towards the end of my range session. Also around this same time..even with a perfect 100% & 100% tight grip and very well placed shots at 7-10 yards. The brass was ejecting at my face quite frequently.
What ammo were you using? Change mag/ recoil springs lately? Detail strip/clean slide?