I read all the posts here, and as none have nominated IMR 4064 with 140 gr. bullets, I will as it has shot well in my 7x57 with 140 grain Partitions and Sierras, if memory serves me...
I never chronographed the loads.
Also, the Speer 110 gr. HP in the 7x57 makes a pretty devastating varmint load on groundhogs; I presume Speer still makes that bullet.
You will enjoy the caliber; I am sure a lot of loads will work for you.
Last edited by BuckeyeSpecial; 03/11/11.