Personally, I think that as long she doesn't fall asleep on the bottle, I wouldn't worry about it. Isom is almost eight months now, and he gets solids at six or six-thirty, then some play time, then a bath, then a cuddle and his last bottle at 7.30. He burps like a sailor, and I tell him have a good sleep, and I lay him down. He's super tired, and kinda scoots around in his crib for ten minutes and passes out with barely a whimper most nights. No problems thus far, he just prefers to go to bed with a full tummy. But then he would never eat when he wasn't hungry. Our three hour schedule varied as to how many calories he burned. I digress.....
If she's eating around 6.45, then she's having an afternoon bottle about 3.45, so there is bo reason to expect her to be hungry an hour earlier. Does that even make sense? Anyhow, HTH.
Crystal