140's and 125's for the .264=good stuff
I load for my Dad's .264 mag. It is his favorite rifle, and sees PLENTY of action, usually taking 20 or so head of big game a year[mostly whitetails, with a few hogs thrown in, although a couple of years ago it took 7 scottish red stag].
His rifle is a pre-64 M70 Westerner with the 26" barrel, and i have settled on a load consisting of 125 grain Nosler Partitions and ALOT of WW Magnum Rifle powder. The powder was discountinued a couple of years ago, but I have a good supply. I had good luck prior to that with 4831. the Chrono shows that I'm getting over 3450 FPS with the WMR powder, with no undue pressure signs, and the rifle is consistantly sub MOA.
The only problem is short case life....usually only 2 times through the rifle, and I get a split case neck.
The 125's shoot flat as a laser beam, and will really let the air out of a Whitetail, even at VERY long ranges. The Nosler partitions always give good expansion, and always penetrate deep. About the only time I get to recover a bullet is on big hogs, or on those Red Stag, and all the bullets "classically mushroomed".
Great cartridge....Dad won't let me use his, so I'm thinking about re-barreling a new M70 to this classic old cartridge.