My 257 Weatherby:My wife bought be the panda 257 weatherby complete for my birthday a couple years ago. Didn't have any info on the components. I assumed it was a 1:10 and bought a bunch of 115 bergers. I fought with it to group better than 3/4". measured the twist with a cleaning rod found it was slower. Turns out it absolutely loved 85gr Nosler ballistic tips at almost 3800fps. Whoever built it must of had long range varmint shooting in mind.
