The .500 JRH is the brainchild of renowned gunmaker, Jack Huntington. To start viewing messages, select the forum that you want to visit from the selection below. I have Brass,Ammo and load data on the way from Jack Huntington but would like some of your input as well. The factory ammo choices are somewhat limited for the .500 JRH. Also I am using 500 WE load data. The .500 JRH is basically a shortened .500 S&W Magnum case and can even be reloaded with .500 S&W Magnum dies when adjusted for the difference in case length. 500 JRH Reloading Question; If this is your first visit, be sure to check out the FAQ by clicking the link above. Continuing our "How powerful is it" series with the 500 JRH magnum through a Magnum Research BFR. I have a 500 JRH (basically a 500 S&W case shortened to 1.4″) and have found that Trail Boss gives me a nice ~800FPS load… Hunting something that can hunt you is no time to get coy over calibers. I get my BFR 500 JRH out of jail next month, so no load data from me. I believe most other dies require you to turn some metal off the bottom of the seating die to get it to work. Im using cut down 500 S&W brass and Lee 500 S&W dies that I cut down the seat crimp die by .400. .500 JRH and dies Does anyone know how to tell if they are the "new" ones that will load .500JRH & .500 Special or the "old" that will not crimp them? 1) RCBS 500 S&W dies will load the JRH without permanent modification to the dies. The 425 grain load is simply beyond my capability of enjoyment. You can load it anyway you want or what your pain threshold will allow. Some of the brass the offer I've never even heard of, so .500 JRH shouldn't be that hard to do. For load data, you can sesrch for the 500 Wyoming express. Only two Buffalo Bore loads are available, the 425 grain LFN and the 440 grain LFN - both are hard cast bullets. I have Brass,Ammo and load data on the way from Jack Thanks for your input. However, I emailed Starline just the other day asking them about the .500 JRH, so I'm sure one email won't do much, but if we keep bugging them surely they'll give in. A couple of things to bear in mind when getting set up for reloading the 500 JRH. Hey Guys I have a BFR in .500 JRH coming in a few weeks and I am looking for some load data.for 440-450 grain cast bullets both light and heavy. I have a BFR 500 JRH. Huntington Custom offers Freedom Arms and Ruger Super Blackhawk conversions for the .500 JRH, and Magnum Research currently sells .500 JRH cylinders for its .50 AE BFR revolver. In all fairness I am ordering actual 500 JRH brass from Mr. Huntington out of respect for him being the one that designed the cartridge. Hey Guys I have a BFR in .500 JRH coming in a few weeks and I am looking for some load data.for 440-450 grain cast bullets both light and heavy. The case capacity is the same. ... 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