Hunting in Many Lands: The Book of the Boone and Crockett Club
“ Judging from what I have been told by some of my friends, however, it seems not unlikely that the best sporting rifle will ultimately prove to be the very small caliber repeating rifle now found in various forms in the military service of all countries—a caliber of say .256 or .310, with 40 grains of powder and a 200-grain bullet. These rifles possess marvelous accuracy and a very flat trajectory. The speed of the bullet causes it to mushroom if made of lead, and gives it great penetration if hardened. Certain of my friends have used rifles of this type on bears, caribou and deer ”
