Re: R25 in 257 Weatherby?
How safe is it? You'd have ample warning signs of too hot of a load before it turned your rifle into a bomb. Load one round at 71grs another at 72,then 73 and a few at 74 and check for pressure signs. I shoot a 6x284 and 22-250 AI and I exclusively load full throttle loads for those bad boys because that's why I wanted them. In 22-250AI I burn Re#22 others have suggested IMR 7828. But in my 6x284 it loves H4350 . I've tried the slow burners they're very accurate but a 100 FPS slower.
How does it profit a man if he gains the whole world but loses his soul?