Hearsay.... yea...
Just because we don't provide information, doesn't mean we don't have any.
Absence of evidence is not evidence of absence. And, every rifle and hand load performs differently.
I guess when I tested FCDs for .270 Win and .30-06, my targets didn't actually provide any data. They must have poked holes in themselves, based on gossip they heard.
You know... the targets heard from this other target that his sister's target knows a target that once saw another target get shot with FCD-crimped ammo and thought FCDs were bad.
Yep, the targets are sick. My best friend's sister's boyfriend's brother's girlfriend heard from this guy who knows this kid who's going with the girl who saw the targets pass out at 31 Flavors last night. I guess it's pretty serious.