re: Self-Defense Ammo Expansion & Penetration Tests

Its damn near impossible to find any comparable tests from a reputable source. I dont understand why.

I was clicking around while shopping for my most recent purchase and was reading about 357 sig vs mag. An ex cop said he shot a perp in the chest with a full size 357 mag with old school 125gr sjhp. He said there were pieces of copper and bad guy and shite several feet behind where the guy was standing. Bad guy was DRT. Most of the bullet didnt exit but it went all over the place. Piss poor performance by most modern standards but the results say otherwise.

What im getting at is im still skeptical that 100% weight retention is the answer. Id like to see some old school stuff vetted out to the extent that the new stuff is.