Hello to all. I'm a 26 year AF veteran who has enjoyed hunting in Colorado whenever I could get back here from wherever I was stationed or deployed. My primary focus has been Elk, Mulies, and Whitetails, and Pronghorn both in Colorado and Wyoming. Have always been a Weatherby fan and my primary hunting rifles are a 300 Wby Mark V purchased in 1971 (therefor 12" twist) and a 257 Wby Mark V purchased 2 years later (and also 12" twist). Both have 26" tubes and have been minimally upgraded with Canjar single set triggers and are otherwise stock. The 300 Wby has been all I could ask for for Elk and Mulies with 165/180/and 200 Gr Nosler partitions even with the slower twist, and 100 gr Hornady spire points are accurate in my slower twist 257 for Deer and Pronghorn. Currently considering a rebarrel of the 257 to 10" or 9.5" to stabilize longer bullets. Inputs for the 257?