Andy Jackson hit a first-half hat-trick as Brechin booked a trip to Falkirk in the Scottish Cup by beating Annan 4-2 in their fourth-round replay.City got off to a flying as Jackson headed in a Ewan McNeil cross after just four minutes and the striker then doubled the lead with a neat right-footed finish seven minutes later.The 26-year-old completed his treble when latching onto a Bobby Barr pass in the 27th minute, but Annan steadied the ship and substitute Scott Davidson managed to pull one back after 68 minutes.Colin Hamilton headed in a fourth for Brechin in the 72nd minute to ensure David Hopkirk's 76th-minute right-footed finish was no more than a consolation for the Galabankies.