RE: Winchester M70 .338 Mag, Max Effective Range
mmpoeth,
In that case I'd recommend the Remington 250 gr PSP CL or the one I shoot when I use factory ammo is the Remington Premier 225gr Ultrabonded . I'm sure there are other good factory loads out there, but I won't comment on what I haven't used. My favorite load is 71.5 of h4831 under a 250 NP Spitzer. Good luck!