The .356 and .358 Winchester cartridge are often compared as being similar, with the .358 being slightly better when it comes to case capacity and ability to handle higher pressure mainly because of the rifles chambered for it.
If a powder is a good performer in the .358 Winchester will it be a good performer in the .356 Winchester? For my .356 Winchester I have a bunch of WW 748 powder I plan on using with 220 grain Speer FN and 250 grain ABW FN bullets. But, I am open to trying other powders in order to boost velocities with either bullet weight.
I am all ears gents!
