So only a bit smaller than a Leo girl at the same age...I would wager they are pretty close. Cleo was about 72lbs at 6.5 months if I recall...right about 80 at the end of 7mos. I always weighed at the same time...the END of the month I was measuring...
I think Leo's get quite a bit taller so the Newfs are more stacked/heavy boned for their height I'd wager.