Hand played at 1-3

Folds to Hero on Button w J3cc
SB is an unknown 50 year old
BB is a tight passive 50 year old
Effective stacks are $300

Hero raise to $15
SB calls
BB folds

Flop Ts54cc
SB check
Hero bets $15, Call

Turn 7o
SB leads $30
Hero?

I know preflop looks big, but because in my games people arent even 3betting AKo preflop anywhere near 100%, I think we benefit alot from raising larger and collecting more dead money with our post flop bets