Minety seconds came from behind to beat Melksham thirds 31-25.
Playing downhill, Melksham strode into an early lead with three unconverted tries, while their hosts struggled to get their scrum in order.
Minety number eight Gareth Peirce got control of the pack and began to instil order in the scrum and the hosts finally won some ball.
The backs responded by running it enthusiastically up the hill and a solid team effort was capped by Tim Vaughan crossing the line for a try. Garin Garland added the extras.
The Hornbury Hill side made a couple of changes at the interval and had a better shape for the second half, enjoying a reliable supply of ball. A Mark Glew try and Garland conversion pulled the hosts within one of Melksham.
Repeated warnings by the referee were not heeded by the visitors as they had man sin-binned. Minety made the most of their man-advantage as Peirce went over for a try. Garland added the extras and then kicked a penalty.
Centre Dellam Murray showed his pace, running in a try from his own 22 to set up an easy conversion for Garland before two late Melksham tries.