The Miniature Hereford Club of America will not classify an animal larger than a frame ONE as a Miniature Hereford. The average size of Miniature Herefords available at the moment is between 104 and 114 cms (41″ and 45″). Australian breeders follow the same guidelines.
The Point of Rocks ranch (the Largents) have a more detailed explanation of how a frame score is determined here
Chris, who is 5′11″ standing with a 3 year old miniature poll Hereford cow.
