I think I've had at least on in one form or another for about 10 years. It's a GREAT cartridge and I believe the best .50 caliber cartridge that fits in a "normally" sized revolver. I currently have two 5 1/2-inch BFRs in .500 JRH. I have killed a number of whitetail, hogs, water buffalo, Cape buffalo with one and it hits hard.