I just bought a box of those EFMJ'sFederal EFMJ (Expanding Full Metal Jacket) and Cor-Bon Pow'R'Ball come immediately to mind.
Looks liek a FMJ, expands like a hollow point.
Also--I've found in some of my 1911's that didn't like some HP's that HydraShok and Golden Sabres would feed reliably.
Actually, from the 9mm EFMJ loads I tried out, the rubber plug is encapsulated inside the scored jacket, with a lead base; there really is no true "hollow point" to it, just jacket material expanding.I agree with Cuda66. The Federal EPFMJ works just like a FMJ round, as the hollow point is filled with silicone rubber, and covered with lead. The Corbon Pow'rball is similar, with the hollow point filled with a polymer ball. It is not covered by lead, as the Federal is. Both are quite effective, with good penetration, and virtually guaranteed expansion. The purpose of both designs is to have a bullet that feeds like FMJ, but reliably expands when the target is hit. Also, there has been some concern, how important is is I don't know, that if the BG is wearing heavy clothing, the normal hollow point can fill with cloth and cause the hollow point to not expand. Both the Federal and Corbon will not be affected by this. I have used both, and the Federal is my defensive load.