Very popular sporting rifle inthe early part of the 20th century after it was introduced in 1903. They had them on the last voyage of the ship Karluk to the north in 1913 too.
From the 'net:
American writer Ernest Hemingway frequently used the rifle, and mentions it in some of his writings, most notably The Short Happy Life of Francis Macomber. WDM "Karamojo" Bell, a prominent elephant (ivory) hunter in Africa in the early 20th century, also used the rifle in its original 6.5×54 chambering with considerable success. The ability of the diminutive 6.5×54 cartridge to take the largest and most dangerous of the big game species, such as African elephant and Cape Buffalo, was due in the main to the high sectional density of the 6.5mm projectiles used in the rifle, although precise placing of the shot was imperative. Because the original factory loads for the 6.5×54 projectiles were long and heavy (10 g or 160 gr) relative to their diameter, they proved capable (in solid form) of very deep penetration through muscle and bone. This, coupled with the relatively low recoil of the cartridge, facilitated accurate shot placement into vital organs such as the heart or brain.