The thing I really got from this was to use quality, modern SD ammo.
Forgetting caliber, take a look at the make/line of ammo used and see which ones expanded and which ones didn't. Case in point, the .357mag. I don't know which company it was, but it looks like an old fashioned SJHP. What happened when bare? It worked. What happened when it hit clothing? It clogged.
I'd love to have seen what would happen had they used a Speer Gold Dot though. $10 says it would go through the clothing and expanded normally.
Forgetting caliber, take a look at the make/line of ammo used and see which ones expanded and which ones didn't. Case in point, the .357mag. I don't know which company it was, but it looks like an old fashioned SJHP. What happened when bare? It worked. What happened when it hit clothing? It clogged.
I'd love to have seen what would happen had they used a Speer Gold Dot though. $10 says it would go through the clothing and expanded normally.