I shoot a 139 grain Hornady over 50 grains of H4350, very accurate and gets 2840 fps over the chrony.
I plopped a nice running mulie with this load, it knocked him right off his feet.
The shot was a quartering away shot, the bullet took out five ribs and exited out the bottom of the neck.
I can't tell the difference between the 270 and the 7x57 on mulies.