On one my visits to the Museum of Natural History (about 5 yrs ago) they had quite a good, if temporary display on Andrews. They stated he always carried 2 rifles on expedition. A 6.5 M-S ,the model 1903, and a Savage 99 in 250.

Sounded like a duplication of effort to me. But maybe he was covering the bases for ammo availability, with Euro/english calibers available in some locales and American in others?

SOS

Nearly forgot, I have a 256 Mann sporter by Jeffery which I'd be happy to post a picture of if only I could find a 6 yr old child to assist me.