Hay sellers around here always claim their bales weigh more than they do. That's why we prefer to grow our own. Not necessarily the best quality since it's just prairie hay, but the horses do better on our hay than what we buy for some odd reason. Besides, I hate putting out a bale of their hay only to find it full of johnson grass, sticks and leaves. Some people will bale garbage if they think they can make a buck on it!
We probably under estimate how much our hay weighs. We have a very old ford tractor that can barely lift them under the best conditions. Sometimes, all we can do is put the tractor in reverse and push the bales into the pens. Pulling the twine off of the biggest ones is a real chore, because it takes at least two big strong men to roll the bale off the twine if it hangs up on the bottom and we can't pull it through.
Plain Old Dee, horses Dancer and Rain I believe in dragons, unicorns, good men and other mythical creatures!