Trojan 12
 

Weston: They measure right at 30 inch. but i don't have a space at the end of the barrels. Thomas L. Benson Sr.

Well, they didn't come any longer than 30". If "just short" of 30" perhaps a damaged muzzle was trimmed up. If exactly 30" perhaps the rib space thing is another one of those that is correct almost all of the time rather than always.