What VB is talking about is not only possible, it is achieveable. Been doing it on a regular basis since 2007.
Doing it with "all natural" fed cattle as well.
Potload averages for yield was 64.4%-67.9% that is mixed steers and heifers. 96.4% Choice and Prime. ALL the 2011 calves accounted for within that matrix with the exception of the pulls that didnt qualify as "all natural"
Genetics? Straight angus. We raise our own bulls to go back to our commercial cowherd.
Once you figure out how much the crossbred cows are costing you or the use of small framed, low birthweight bulls is causing you. It isnt that hard to achieve.
Remember-- today only 20% of the cattle nationally are profitable thru the feedlot. It takes lbs, feed efficiency and carcass quality to get the job done consistently.
I am not getting the rate of gain that VB is talking about today-- but when I was still pouring the coals to the steers, that was a pretty good number as well. Today, least cost ration thru a TMR and we are averaging 800 lb carcass weights on steers and heifers at 13-14 months of age. With the dressing % as high as it is-- the cattle dont need to be huge, just have alot of real grow-- not just EPDs.
Probably wont do it consistently with sires that are greasy either.