I'm trying to work on when to fire a second barrel, and I was wondering if you think this ace is a good enough scare card to warrent it or not.

BB has a big stack and seems decent.

Party Poker
No Limit Holdem Ring game
Blinds: $0.50/$1
5 players


Stack sizes:
UTG: $77.65
CO: $96.05
Button: $95.90
hero: $101.25
BB: $273.75

Pre-flop: (5 players) hero is SB with
3 folds, hero raises to $4, BB calls.

Flop: ($8, 2 players)
hero bets $7, BB calls.

Turn: ($22, 2 players)


Results:
Final pot: $22

Who fires about an $18 bullet here?

No... If he's calling you, theres a pretty good chance he has x... NO WAY he's folding there...