I have had a few rifles chambered in 257 and 257AI since the first, a Ruger 77 R, arrived in 1981.
After trying a lot of different bullets, I've settled on the 75 and 90 grain Sierra for shooting varmints and 110 grain ABs for medium game. Same/same for the 25 WSSM, 25-284, and 25-06.
I worked on the M-70 trigger for a good bud who was having issues with his .25 WSSM. Man was that a nice little rifle. Brass would be an issue, but he had a lifetime supply.
I've read it can be a challenge to tweak an action to feed those smoothly. The factory seemed to have solved that issue. He said it fed rounds very smoothly and it was accurate.
DF
