Originally Posted by Karl.Luhr
I think that I would rather have the 7x57 mauser or 257 roberts over the 6mm rem when using them on Deer. Just my opinion.
Don't know about reloader-friendly, but all three are based on the same case, just necked down (.257) and downer (.243) from the .284 parent. It would be good to have a whole line-up based on the same case, but since I have a .308 Win also..... hey, you can never have too many toys!