View Single Post
Old November 18, 2012, 12:28 AM   #11
Jimro
Senior Member
 
Join Date: October 18, 2006
Posts: 5,569
8 mm and below is small bore. The German 8x57IS was the biggest of the cartridges allowed in "small bore" competitions. I guess since the competition rules have moved on the definition may have changed.

8 to 10 mm is medium bore. You will find a lot of reference to the 375 H&H as a "medium bore" round.

Over 10 mm is big bore.

In America small bore is now synonymous with rimfire, although I don't know how that developed. In some countries "fullbore" refers to a service rifle competition (in 308 Win).

Jimro
__________________
"Gorsh" said Goofy as secondary explosions racked the beaten zone, "Did I do that?"

http://randomthoughtsandguns.blogspot.com/
Jimro is offline  
 
Page generated in 0.04256 seconds with 7 queries