I own loading manuals going back 15 years from numerous manufacturers, there are many differences just like you describe.
I have thoroughly tested, good safe recipes that are well above the stated max in other manuals, the biggest differences are cartridge case, primer, barrel length, and firearm used.
I would NOT put these in just any rifle and shoot them, some of these loads are for MY rifle alone.
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NRA Lifetime Member Since 1999
"I ask, sir, what is the militia? It is the whole people except for a few public officials." George Mason
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