I can't vouch for it myself, but before I bought some buffal bore ammo for my .45s I did some research and went onto Buffalo bore's websight. There were lots of pics and testimonials from people who used the .45 ammo and killed Kudu, Cape Buffalo and other big plains game with the ammo and were very happy with it. As I said, I didn't see it happen, all I know is what I read in the funny papers. One thing I do know, is you do not need that much power to kill a deer and wild hogs so I sold the stuff and switched to hornady. I am not afraid of recoil, but in order to use a handgun and hit what you shoot at, you must practice, I don't believe a diet of that stuff will do my Ruger Blackhawk Bisley and good. I had to have a stronger spring lot in to keep the cylinder rod from poping out. The gunsmith who is well known for working on handguns, particularly single action guns told me he has put lots of retainer springs in Rugers for owners using Buffalo bore in ther .45s. I decided I didn't need to shoot my gun to pieces. This is from Midway USA's webisite for Buffalo bore ammo: Caliber: 45 Colt (Long Colt) +P
Bullet Weight: 260 Grains
Bullet Style: Jacketed Hollow Point
Case Type: Brass

Ballistics Information:

Muzzle Velocity: 1450 fps
Muzzle Energy: 1214 ft. lbs