Nenagh got off to the better start at Semple Stadium on Sunday as the Blues led by 1-5 to 0-2 with less than 14 minutes gone. Playing with the breeze, the town outfit had each one of their six starting forwards on target by then and Paddy Murphy netted the 12th minute goal.
But Loughmore dominated for the remainder of the half to remain in touch, although a first half tally of eleven wides was a major concern.
In the second half, the Killinan End proved difficult for Nenagh to penetrate as they registered seven wides, with Loughmore far more economical with their shooting.
Noel McGrath thundered into the game in the second half and his cousin Liam supplied the crucial goal, in the 45th minute.
Tipp’s 2011 All-Ireland minor football winning captain collected Meagher’s pinpoint delivery and he cracked home a wonderful goal at the Town End.
Loughmore now led for the first time in the game, 1-13 to 1-12, but Nenagh were back on terms with four minutes left.
They got back to within a point when Mikey Heffernan, who lashed a 34th minute penalty over the crossbar, slotted over a free. But despite a couple of late scares for Loughmore, they held out in a frantic finish to set up an AIB Munster quarter-final showdown with Limerick champions Na Piarsaigh, at Semple Stadium on October 27.
Scorers for Loughmore-Castleiney: Noel McGrath 0-7 (0-1f, 0-1 ’65), L McGrath 1-2, A McGrath (0-2f) & C Hennessy 0-2 each, C McGrath, T McGrath, D Kennedy & E Sweeney 0-1 each.
Scorers for Nenagh Éire Óg: M Heffernan 0-7 (0-3f, 0-1 pen), P Murphy 1-2, P Morris 0-3, T Heffernan 0-2, A Coffey and R Flannery 0-1 each.
Loughmore/Castleiney: Shane Nolan; Tommy Long, Derek Bourke, Joseph Hennessy; Aidan McGrath, John Meagher, Tom King; Ciaran McGrath, Tomás McGrath; John McGrath, David Kennedy, Noel McGrath; Liam McGrath, Evan Sweeney, Cian Hennessy. Sub: Micheál Webster for Kennedy (56).
Nenagh Eire Og: Michael McNamara; Mark Flannery, Noel Maloney, John Brennan; Daire Quinn, Hugh Maloney, Billy Heffernan; Barry Heffernan, Kevin Tucker; Pearse Morris, Michael Heffernan, Tommy Heffernan; Andrew Coffey, Paddy Murphy, Richie Flannery. Subs: Donncha Quinn for Billy Heffernan (52), Paul Ryan for Coffey (46), Johnny Slattery for Paul Ryan (60).
Referee: John McCormack (Knockavilla Kickhams).