Kombi,
I don't see the .257 Roberts as "superseded". If there is room for
18 odd .224 chamberings, then there is room for 4 good quarter
bores(250 Sav, .257 Bob, .25-06, .257 Wtrby). These choices are
at least spaced out a bit on the performance curve, unlike the
.224, which is so crowded, and has so much redundancy, that
the "gotta have something new" crowd has rushed to the
.20 caliber rifles, for their new rifle fix.
Now that I am smitten with the .25 cal, I can easily see a .257 Roberts,
or a .257 Weatherby, following me home someday. I am told I
will REALLY like the .257 Roberts, but I am 52, and still young
enough at heart to want Mo' Thump, so I could see a .257 Weatherby,
bringing a huge smile to my face upon trigger pull, too. So far the
.257 WSSM does not do a thing for me, so there it one cartridge,
that will not supersede anything, in my mind. If it would have
been a .257 WSM, then it may have replaced my urge for a
.257 Weatherby. Since it did not, then I will probably end up
with some of that funny rounded shoulder Weatherby brass in
my tumbler someday.
Squeeze