25-06 is a 30-06 necked down. Great cartrige, one of my favorites...used to load 117gr but I really like the 110 accubond and suprisingly found RL22 with mag primers to work the best in mine. Between my two boys and I using it we have taken antelope, mule deer and cow elk and never wished we were carrying a different gun. The longest kill was 406 yards lung shot on a cow.