Hodgdon.com
Nosler.com
Or any one of a mountain of good reloading manuals.
Mass produced rifles have a range of tolerances acceptable to leave the factory. None of us know what YOUR rifle is, nor would we know what it prefers; you have to find that out for yourself.
None of my 204's like being pushed hard & fast, not for best accuracy. Be aware of Varget in the 204, the coatings tend to accumulate hard Carbon fouling very quickly.
Bookmarks