Welcome to the boards. I know you told us that you live in SC, but 2 weeks (or 2 days for me!!), we won't remember. I realize you have SC in your "name", but, if you would click on your name at top of page and put your location in your info, it will show up under your name on each post. Location is extremely important when we discuss programs or problem solving.
I raise PB Simmental to sell as seedstock and show cattle. In this day and age, there isn't a lot of difference between breeds like there used to.
I feed out 2-6 fall born steers each year. After I wean them in Mar/April, I put them on whole shell corn (cheapest and heathiest diet) with some protein pellets added to make a 14% ration. I start them off at 1% of their BW, slowly increasing the amount of corn. By the time they are about 800#, they don't need that much protein. More like a maximum of 12% ration. Mine are on grass while they are being fed. Later in the summer, they are on good hay.
My goal is to butcher my Sept/Oct born steers in October when they are 12-13 months of age and have a 750# carcass weight. The last one harvested mid Oct was a 747# HCW.
Research shows that you need to keep a calf's growth curve constant for best marbling. So, by putting them out on pasture after having mom's great milk and grazing, you are probably slowing down his growth curve.
Well, that was probably more than you wanted to hear!!!
Mainly want to welcome you and hope you visit with us.