Amount in Bottle at almost 4 months

Just curious on how much people were giving their baby in a bottle around this age. Currently during the day, I have the daycare give him a 4 ounce bottle every 2 hours. He seems happy and healthy with this plan. At night, he wakes twice, usually a 4 hour stretch of sleep then a 2.5 to 3 hour. When nursing and my breast are very full, he will take it all in almost. By rough calculations, I think he will sometimes nurse up 6 ounces. I feel like he might be ready for more and longer stretches at daycare. Just curious what the group does. It is hard to find information online that is not talking about about formula and feeding schedule.