American Gun writers referring to 375 cal as a bigbore.

So starting from the top. CRAIG BODDINGTON

CRAIG BODDINGTON January 04, 2011 By Craig Boddington

"A season's worth of experience shows the gold standard for African cartridges is still a great choice.
By Craig Boddington

Holland & Holland's .375 goes clear back to 1912, but among Americans its real popularity starts in 1937 when it became one of the early offerings in the Winchester Model 70. For the next half-century it was America's favorite big bore--ready for Africa's big stuff, Alaska's biggest bears and all-around use as needed."


grin grin grin grin grin grin grin

Jack Lott
GunsandAmmo Hunting
"This book is about bigbore riflres, the 'supers', once the special ordance of professional hunters and wealthy sportsman. Back in 1937, when winchester introduced the Model 70 and included the 375H&H, the previous US view of the 30-06 as a "bigbore" was made obsolete"

grin grin grin

Also

https://www.shootingtimes.com/editorial/375-ruger-416-ruger-big-bore-cartridges/385528
https://www.outdoorlife.com/story/hunting/best-big-bores-for-your-first-african-safari/
https://gundigest.com/rifles/hunting-rifles/choosing-a-big-bore-cartridge-and-rifle
https://www.americanrifleman.org/articles/2018/6/11/remembering-the-375-winchester-cartridge




The list goes on...;)

next you will be telling me you know better than your own 'notable' gun writers.
laugh