Tried to follow what JohnRea did but we entered too deep into the forest, which became quite difficult to crawl through towards the top. At the top we saw a path going east and followed it to the open field for a while before reentering the forest for an easy track down. The track/lane back to the cars is rough so we parked at the last house on the lane up.

It would have been much easier to enter the east side of the forest and walk up as far as it reasily possible, go right into the field once the forest become too dense with low branches, and pick up the track in that field which brings you close to the top. You need to cross a wire fence and go west near the top. Linkback: https://mountainviews.ie/summit/805/comment/24172/