Throw my vote on the .257 roberts. 120 grain partitions, 43 grains of H414. One of my favorite recipes for making things dead.
When I was doing a lot of range days with the local hunters ed classes, the small kids especially seemed to handle the .257 with remington factory 117 grain roundnose ammo better than they did the .243 with factory 100 grain stuff. Same brands of rifles so I don't think weight was a factor. I think the lower pressure, thus less sharp "boom", affected them less.
Tom
Anyone who thinks there's two sides to everything hasn't met a M�bius strip.
