If rifles chambered for a particular cartridge are all so radically different that what works in one most likely won't work in another, then how did the various "standards" that typically work quite well in most any rifle come to the fore over the years?
Examples:
308 Winchester: Federal Gold Medal Match, or 41.5 gr IMR4895 (or 42 gr. IMR4064 or 39 gr. IMR3031) and a 168 SMK in military brass
270 Winchester: 55 gr. IMR4350 and a 130 gr. bullet
30-06: 52 gr. IMR4064 and a 150 gr. bullet
I could go on.
Add Prime Ammo to that list of examples. It shines in the same light as FGMM as it just WORKS in so many different rifles. Have seen many PRS shooters flat quit reloading their own match ammo and switch completely to Prime just to save the time/effort at the load bench.
Although I won't share loads on the internet I won't gripe at those who do. It's common knowledge to work up to anyone else's load as a basic safety factor of handloading.
