Due to advanced age and a very serious car accident last December, I need to find some reduced load data for my 416 Rigby. I have access to 350 and 400 grain cast gc boolits. The most appropiate powders available to me are Unique, 2400, IMR 4198, and 4759. If a load requires the use of a dacron filler, please mention it with the load. I’m a long time pistol cartridge reloader, but my rifle reloading was limited to semiauto cartridges. In the last few years, I became infatuated with Ruger #1s. The 416 loads will be shot from a Ruger #1. Any help will be appreciated.