Jack Stevens
AH veteran
I agree, and posted that I think given the changes in paradigms with modern ammunition, that this can be neatly done in 2mm increments:Many will disagree with me but I've always viewed anything >0.40 as a big bore.
I used to think my 375H&H was a big bore until I was shown the error of my ways.
The 375s I can agree with, the 40s still feel like they should be big bores.
Everything has been "scaled down" in caliber since the black powder days so the medium bores of 1900 are the new starting point of big bores today.
I ran out of poll choice options and I have a feeling that 577 NE is as big as most people are willing to go. Of course there are plenty of options not listed above that I'm sure are fan favourites among many here.