The Firing Line Forums - View Single Post - What classifies a small/medium/large(big) bore rifle?

**44 AMP** · October 1, 2018, 10:58 PM

Quite a few people are just referring to bore diameter, when saying caliber. Doesn't Henry call their .44 a "Big Bore"?

Winchester named their revamped model 94 in .375 Win the 94 Big Bore.

In general big bore is applied to anything over .35 caliber, though some put the line at .37caliber. And it doesn't matter if its a powerful big bore, or not.

In pistols, .35s are considered medium, 40 and up is big bore.

Big bores can be deer rifle power level, or more, or in some cases, even less.

October 1, 2018, 10:58 PM	#16
44 AMP Staff Join Date: March 11, 2006 Location: Upper US Posts: 28,867	Quite a few people are just referring to bore diameter, when saying caliber. Doesn't Henry call their .44 a "Big Bore"? Winchester named their revamped model 94 in .375 Win the 94 Big Bore. In general big bore is applied to anything over .35 caliber, though some put the line at .37caliber. And it doesn't matter if its a powerful big bore, or not. In pistols, .35s are considered medium, 40 and up is big bore. Big bores can be deer rifle power level, or more, or in some cases, even less. __________________ All else being equal (and it almost never is) bigger bullets tend to work better.