I think i have decided on having her shoot the 7mm-08 because it has less recoil and my .257 weatherby is alittle long for her. So now what bullet would you shoot out of the 7mm-08 for a cow elk.
Ya, probably a good choice. You might want to take her out to the range and try both rifles. However, I'm guessing that it would be the same result in the end, i.e. she would choose the 7mm-08 over the .257 Weatherby. Now, if you were comparing the 7 to a .257 Roberts, that might be a different story.
