Is that right? Fast light projecticle that fragments at the first sign of anything other than air will have overpenetration issues? Are you sure about that assesment?
I'm sure he is talking about FMJ's which is what most people shoot. If so, he's right. Which is why my RFB would be terrible for home defense with 147gr FMJ's. Not too worried about the neighbors though since I live on an acreage and they aren't very close.