For those who think the .257wbymag is expensive to shoot, consider this;
I don't own a single piece of .257wbymag stamped brass!
All ~100pieces I own are reformed from 7mmRemMag brass, with the exception of a single piece of .270WbyMag that I've necked down to .257 for comparison with my other brass.
Simply run a fired 7mmRemMag into the .257wbymag dies, and presto, you have a .257wbymag case, though be it that it is about .050 shorter (neck) than the "factory" brass. Means that when/if you need to trim the case length, you really should toss it in the recycle bin (5gal bucket for used-up brass.....)
Also, buy 8lbs of WC-860, or similar .50BMG surplus powder. I got mine for $25/8lbs, bought 16lbs.... Also use it in a .300RUM.
Ammo now costs' less than $0.20 a shot instead of over $2.50 each for factory ammo.
If you don't reload, and if you shoot over 20rds a year, you really should.......
BTW; my first 40 .257Robts. were reformed from range pick-ups in 7x57, 8x57, and 6mmRemington's....... Of the over 250 "Roberts" cases I have, only 120 were "bought", and those were factory loads that Walmart was "Closing out" at $2.00 a box about 17yrs ago. I still have one box of unfired. (Winchester 117gr RN "PowerPoints"..........)
The last 300 bullets I bought were some 117's that had been sitting on a gun-shop shelf for perhaps 15yrs. I bought them for 6.00/100 (2-boxes of Hornady 117gr RN's, and 1-box of 117gr BTSP's!).
My .257's (three of them) are "Cheap" to shoot!
A 6.5 would't be much different. I had another reloader "give" me parts of 4 boxes of 100gr, 120gr, 129gr, and 140gr bullets.
I guess I'll have to buy/build a 6.5 now !!! Since I can shoot it for almost free!
FWIW; Killed a beautiful "Yellow" Coyote bitch this AM with the .257wbymag. The Speer 120gr Spt. put it down bang-flop, and didn't make too big of holes in the pelt, even though I shot it at a whopping 30yds...............