after looking thru the Berger reloading book about the 257 Weatherby mag. i trIed Reloader 25 and my groups were even better with this powder over Reloader 22 ,i have also started using Hammer Hunter 103 gr. bullets that do group better with than Barne`s bullets for me in my 10 twist Brux barrels and my 8 Twist Brux barrel . I have only killed 3 big game animals last fall with this combo but plan on using Reloader 25 and 103 gr. Hammer Hunter bullets again this fall 2023. good luck with you combo choice,Pete53
