In general, a 100 grain bullet works best in 25 caliber rifles with 1 in 10" twist. My 95 year old shooting buddy loves 25 caliber rifles, and he says 100 grainers are the way to go. I can't argue with his 70 years of experience. In my old 25-06 the 100 grain Partitions shot bug holes at max charges. My current 25 caliber rifles with 10" twist are a 250 Savage and a 257 Roberts. 100 grainers shoot best of all game bullets in those, too.
