Thanks for all the input. I'm sure I can work up a good load for my son. Nice to hear good results with the Speers. I find Sierras can be very accurate, my 257 Bob shoots Sierra 100grs lights out fantastic. But, as stated above, If one bullet or another cuts group from 1.5in to 1 in. it really dont mean much on a deer. I think a long shot for him would be 200yds.
Anyone tried the Environ powder in a 7x57 yet? Looking forward to trying that one.