The other day I was at the range and a guy said his 338 was a big bore rifle. I did not say any thing but I thought that it was a very powerful rifle but in my mind a big bore rifle has a caliber that starts with a 4. While Medium bore starts with a 3 and small bore starts with a 1 or 2.
So is there a definition of "big bore" Vs Small bore?
So is there a definition of "big bore" Vs Small bore?