We had a bull calf born last year out of a mature PB simmi cow. Calf was 87#. Huge bone, huge hair, and really good. He is hitting about 1020 right now and is really starting to look good. Very sound and moves out well.
I posted a picture under calf pics of a bodacious steer out of a wmw simmental cow that weighed 80 lbs. Had anonther bull calf from a total play grandduaghter weighed 110 lbs. She usually has around a 90 to 95 pound calf. I really like both calves. Good luck!