Originally Posted by bigwhoop
Say, does anyone know how Hornady came up with 139gr and 154gr bullets? They seem to be unique that way.


IIRC it is based on metric weights of original euro boolits... 139 grains = 9 grams, 154 grains = 10 grams, etc.

Would make sense that at 7 mm boolit would weigh 9 or 10 grams ...