I just started loading for my new .338 Win Mag with my preferred bullet, Barnes 225gr TTSX. I started with H4831sc because I use a lot of it and have good supply. I've gotten excellent accuracy but I'm over max and running out of room and just barely marking 2700fps out of my 24" barrel.
This is one rifle that temperature insensitivity does matter( late season elk in NM and nilgai in S. Tx.). H4350 is not available so what powder should I try now? Has anyone tried one the Enduron powders in this caliber?
