I have shot a number of Elk. Most were taken with the 308 Norma Magnum and either 180 or 200 Partitions.
Recently, I have been using one of 2 8mms, the 325 WSM and the 8mm Rem Magnum.
In the 325, I use the 196 Norma Oryx, in the 8 mag either the 200 or 220 A-Frames.
I have shot two Elk at 400+, one with the 308 Norma Mag and the 180 Part. Double lung, only went about
20 feet and piled up. [laser ranged at 415 yards]
The other was a 425 yard shot on a 6x5 Bull with the 8mm Rem Mag and the 220 A-Frame. Dead within a
few stumbling steps.
In my humble opinion, the 8mm Rem Mag is an ideal Elk chambering, particularly at over 350 yards.. That being
said, I shot a big cow elk at 385 yards with the 6.5 x 55 AI and the 142 LRAB. DRT Bullet recovered under far
side hide.
Although I have not shot Elk with either, I believe the 338 Win and the 340 Weatherby are very good Elk medicine.
Dave.