Winchester City fielded only three of their triumphant FA Vase side in the Russell Cotes Cup at Brockenhurst, but still managed a 3-1 win.
One of them, Danny Smith, scored one and made one as City went in two up at half-time.
The former AFC Bournemouuth midfielder cut inside from a Steve Waite throw-in to bury a low 32nd-minute shot.
Eight minutes later he returned the compliment, crossing for Waite to head home at the far post.
A sizzling Kevin Brewster 25-yarder widened the gap on 66 minutes, leaving Brock with a last-minute Danny Neville consolation strike.
Form side Christchurch are also through to the RCC fourth round after chalking up their tenth win in 12 games at the expense of Moneyfields.
But it was no easy task for Pete Moore's revitalised side who were held 2-2 after extra time and finally scraped through 4-3 on penalties.
Priory's Scott Joyce and James Baker cancelled Lee Mould's opener for the Moneymen before Gary Jones squared matters again.
Two saves by keeper Max Frampton carried Priory to shootout victory, aided by successful spot-kicks from Jason Atkins, Chris Kennedy, John Wyatt and Paul Rideout.
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