I have a few kegs of Shooters World Heavy Pistol. It's really Lovex powder. Usually I load most my 357 mag with it and it works fine.
This powder is comparable to AA#9 in burn rates. Since it is meant for large capacity handgun cases I'm thinking it may be suitable for the 500 Linebaugh medium heavy loads like #9.
Has anyone tried it in the 500L yet or if someone has quickload and could check for a starting load with the CP 435gr wfngc bullet and let me know I would deeply appreciate it.