A little late, I know.. But I bred 5 heifers to Ali's Solution with an average birthweight of 64 lbs. Heaviest calf was 72 lbs. he breeds them hairy and they grow like wildfire from the second they hit the ground.
I agree with Gargan. I think you can find a pretty decent crossbred calf at your local sale barn. This will be the type of steer that will feed with ease, as that is what commercial cattle are bred for.