I have to fire another barrel, right?

[CopTHIS]

Villian is 28/10 over 2000 hands. He is actually a fair bit down over that period, but I think it's variance and that he is solid (he's called ex_noose).

I'd had zero good hands at this table and had been tight. Also, I hadn't really put much pressure on villian despite being to his left. Given that, is the third barrel OK or a bit of a spew? I picked up a draw on the turn so could have checked (?) .. but if I do and miss I guess I have little credibility to bluff.

I'm not asking for comments pre-flop - I know that 74s isn't a monster!

Party Poker No-Limit Hold'em, $ Hero (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($591)
Button ($672.15)
SB ($1009.59)
Hero ($795.65)
UTG ($311.40)

Preflop: Hero is BB with 7[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $3.
<font color="#666666">3 folds</font>, SB (poster) completes, <font color="#CC3333">Hero raises to $15</font>, SB calls $15.

Flop: ($42) Q[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $35</font>, SB calls $35.

Turn: ($112) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $85</font>, SB calls $85.

River: ($282) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $85</font>, <font color="#CC3333">Hero raises to $300</font>