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The 257 Roberts,probably the best cartridge ever made.
As the proud new owner of a 20-year-old-and-barely-used Ruger in .257 Roberts, I hope you're right!
Have dies and 75g V-MAx bullets on the way, and my first loads will be for varmints.
Saw the Barnes load data today and have to say I was impressed with the velocities they were getting for their 115g bullets -- I think 2975fps was the top.