from my original point;
"I like to keep guns and caliber within the same families."
I never said "Since Ned used 8x57 to build the 257 Roberts"
Is it absolutely necessary to split hairs, every time? the difference from the 7 to the 8x57 brass as a basis for the 257 Roberts is so minuscule as to be almost laughable. some of you have some interesting points that you must argue. why not spend time building each other up instead of trying to tear someone else down to make yourself feel better and more superior?
I was trying to point out the reason in my life for choosing a cartridge that is not exceedingly common, instead of choosing the .243 or 260 more common and modern rounds. I had a need for a smaller caliber deer and sometimes elk round for the kids. I reload and have that idea in my head to keep guns and calibers IN THE SAME FAMILY!!! Yes the 7x57, the 8x57 AND the 257 Roberts are ALL in the same family. Get over yourselves and answer the op and not argue with me over a senseless point, please.