I’m a few days late posting this, so apologies to Brandon from AtG, but Ammo to Go has published a massive (their word) test of self-defense ammo.
The AmmoToGo.com team tests nearly 100 different handgun loads through a 4-layer barrier into ballistic gelatin. Enjoy the treasure trove of data and see how each round compared under identical testing conditions to other ammunition options.
Read. Learn. Argue (of course; you’re gunfolk). Enjoy.